[media] drivers: media: au0828: Fix dependency for VIDEO_AU0828

Fix the following build warning:

warning: (VIDEO_AU0828) selects DVB_AU8522 which has unmet direct dependencies (MEDIA_SUPPORT && DVB_CAPTURE_DRIVERS && DVB_CORE && I2C && VIDEO_V4L2)
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/au0828/Kconfig

@@ -2,6 +2,7 @@
 config VIDEO_AU0828
 	tristate "Auvitek AU0828 support"
 	depends on I2C && INPUT && DVB_CORE && USB && VIDEO_V4L2
+	depends on DVB_CAPTURE_DRIVERS
 	select I2C_ALGOBIT
 	select VIDEO_TVEEPROM
 	select VIDEOBUF_VMALLOC