Driver build produce lots of warnings due to wrong kernel-doc markups:

    drivers/media/platform/davinci/vpbe.c:60: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_current_encoder_info'
    drivers/media/platform/davinci/vpbe.c:78: warning: Function parameter or member 'cfg' not described in 'vpbe_find_encoder_sd_index'
    drivers/media/platform/davinci/vpbe.c:78: warning: Function parameter or member 'index' not described in 'vpbe_find_encoder_sd_index'
    drivers/media/platform/davinci/vpbe.c:105: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_g_cropcap'
    drivers/media/platform/davinci/vpbe.c:105: warning: Function parameter or member 'cropcap' not described in 'vpbe_g_cropcap'
    drivers/media/platform/davinci/vpbe.c:127: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_enum_outputs'
    drivers/media/platform/davinci/vpbe.c:127: warning: Function parameter or member 'output' not described in 'vpbe_enum_outputs'
    drivers/media/platform/davinci/vpbe.c:221: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_set_output'
    drivers/media/platform/davinci/vpbe.c:221: warning: Function parameter or member 'index' not described in 'vpbe_set_output'
    drivers/media/platform/davinci/vpbe.c:316: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_get_output'
    drivers/media/platform/davinci/vpbe.c:328: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_s_dv_timings'
    drivers/media/platform/davinci/vpbe.c:328: warning: Function parameter or member 'dv_timings' not described in 'vpbe_s_dv_timings'
    drivers/media/platform/davinci/vpbe.c:380: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_g_dv_timings'
    drivers/media/platform/davinci/vpbe.c:380: warning: Function parameter or member 'dv_timings' not described in 'vpbe_g_dv_timings'
    drivers/media/platform/davinci/vpbe.c:405: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_enum_dv_timings'
    drivers/media/platform/davinci/vpbe.c:405: warning: Function parameter or member 'timings' not described in 'vpbe_enum_dv_timings'
    drivers/media/platform/davinci/vpbe.c:436: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_s_std'
    drivers/media/platform/davinci/vpbe.c:436: warning: Function parameter or member 'std_id' not described in 'vpbe_s_std'
    drivers/media/platform/davinci/vpbe.c:475: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_g_std'
    drivers/media/platform/davinci/vpbe.c:475: warning: Function parameter or member 'std_id' not described in 'vpbe_g_std'
    drivers/media/platform/davinci/vpbe.c:500: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_set_mode'
    drivers/media/platform/davinci/vpbe.c:500: warning: Function parameter or member 'mode_info' not described in 'vpbe_set_mode'
    drivers/media/platform/davinci/vpbe.c:585: warning: Function parameter or member 'dev' not described in 'vpbe_initialize'
    drivers/media/platform/davinci/vpbe.c:585: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_initialize'
    drivers/media/platform/davinci/vpbe.c:779: warning: Function parameter or member 'dev' not described in 'vpbe_deinitialize'
    drivers/media/platform/davinci/vpbe.c:779: warning: Function parameter or member 'vpbe_dev' not described in 'vpbe_deinitialize'
    drivers/media/platform/davinci/vpbe_osd.c:144: warning: Function parameter or member 'sd' not described in '_osd_dm6446_vid0_pingpong'
    drivers/media/platform/davinci/vpbe_osd.c:144: warning: Function parameter or member 'field_inversion' not described in '_osd_dm6446_vid0_pingpong'
    drivers/media/platform/davinci/vpbe_osd.c:144: warning: Function parameter or member 'fb_base_phys' not described in '_osd_dm6446_vid0_pingpong'
    drivers/media/platform/davinci/vpbe_osd.c:144: warning: Function parameter or member 'lconfig' not described in '_osd_dm6446_vid0_pingpong'
    drivers/media/platform/davinci/vpbe_osd.c:799: warning: Function parameter or member 'sd' not described in 'try_layer_config'
    drivers/media/platform/davinci/vpbe_osd.c:799: warning: Function parameter or member 'layer' not described in 'try_layer_config'
    drivers/media/platform/davinci/vpbe_osd.c:799: warning: Function parameter or member 'lconfig' not described in 'try_layer_config'
    drivers/media/platform/davinci/vpbe_display.c:578: warning: Function parameter or member 'disp_dev' not described in 'vpbe_try_format'
    drivers/media/platform/davinci/vpbe_display.c:578: warning: Function parameter or member 'pixfmt' not described in 'vpbe_try_format'
    drivers/media/platform/davinci/vpbe_display.c:578: warning: Function parameter or member 'check' not described in 'vpbe_try_format'
    drivers/media/platform/davinci/vpbe_display.c:943: warning: Function parameter or member 'file' not described in 'vpbe_display_s_std'
    drivers/media/platform/davinci/vpbe_display.c:943: warning: Function parameter or member 'priv' not described in 'vpbe_display_s_std'
    drivers/media/platform/davinci/vpbe_display.c:943: warning: Function parameter or member 'std_id' not described in 'vpbe_display_s_std'
    drivers/media/platform/davinci/vpbe_display.c:975: warning: Function parameter or member 'file' not described in 'vpbe_display_g_std'
    drivers/media/platform/davinci/vpbe_display.c:975: warning: Function parameter or member 'priv' not described in 'vpbe_display_g_std'
    drivers/media/platform/davinci/vpbe_display.c:975: warning: Function parameter or member 'std_id' not described in 'vpbe_display_g_std'
    drivers/media/platform/davinci/vpbe_display.c:998: warning: Function parameter or member 'file' not described in 'vpbe_display_enum_output'
    drivers/media/platform/davinci/vpbe_display.c:998: warning: Function parameter or member 'priv' not described in 'vpbe_display_enum_output'
    drivers/media/platform/davinci/vpbe_display.c:998: warning: Function parameter or member 'output' not described in 'vpbe_display_enum_output'
    drivers/media/platform/davinci/vpbe_display.c:1025: warning: Function parameter or member 'file' not described in 'vpbe_display_s_output'
    drivers/media/platform/davinci/vpbe_display.c:1025: warning: Function parameter or member 'priv' not described in 'vpbe_display_s_output'
    drivers/media/platform/davinci/vpbe_display.c:1025: warning: Function parameter or member 'i' not described in 'vpbe_display_s_output'
    drivers/media/platform/davinci/vpbe_display.c:1054: warning: Function parameter or member 'file' not described in 'vpbe_display_g_output'
    drivers/media/platform/davinci/vpbe_display.c:1054: warning: Function parameter or member 'priv' not described in 'vpbe_display_g_output'
    drivers/media/platform/davinci/vpbe_display.c:1054: warning: Function parameter or member 'i' not described in 'vpbe_display_g_output'
    drivers/media/platform/davinci/vpbe_display.c:1074: warning: Function parameter or member 'file' not described in 'vpbe_display_enum_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1074: warning: Function parameter or member 'priv' not described in 'vpbe_display_enum_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1074: warning: Function parameter or member 'timings' not described in 'vpbe_display_enum_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1104: warning: Function parameter or member 'file' not described in 'vpbe_display_s_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1104: warning: Function parameter or member 'priv' not described in 'vpbe_display_s_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1104: warning: Function parameter or member 'timings' not described in 'vpbe_display_s_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1137: warning: Function parameter or member 'file' not described in 'vpbe_display_g_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1137: warning: Function parameter or member 'priv' not described in 'vpbe_display_g_dv_timings'
    drivers/media/platform/davinci/vpbe_display.c:1137: warning: Function parameter or member 'dv_timings' not described in 'vpbe_display_g_dv_timings'
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>