media: ti: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/platform/ti/vpe/ti-vpdma.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/platform/ti/vpe/vpdma.c

@@ -1173,4 +1173,5 @@ EXPORT_SYMBOL(vpdma_create);
 
 MODULE_AUTHOR("Texas Instruments Inc.");
 MODULE_FIRMWARE(VPDMA_FIRMWARE);
+MODULE_DESCRIPTION("TI VPDMA helper library");
 MODULE_LICENSE("GPL v2");