[media] staging/davinci/vpfe/dm365: add missing dependencies

This driver can only be built when VIDEO_V4L2_SUBDEV_API
and VIDEO_DAVINCI_VPBE_DISPLAY are also provided by the
kernel.

drivers/staging/media/davinci_vpfe/dm365_isif.c: In function '__isif_get_format':
drivers/staging/media/davinci_vpfe/dm365_isif.c:1410:3: error: implicit declaration of function 'v4l2_subdev_get_try_format' [-Werror=implicit-function-declaration]
   return v4l2_subdev_get_try_format(fh, pad);
   ^

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/staging/media/davinci_vpfe/Kconfig

@@ -2,6 +2,8 @@ config VIDEO_DM365_VPFE
 	tristate "DM365 VPFE Media Controller Capture Driver"
 	depends on VIDEO_V4L2 && ARCH_DAVINCI_DM365 && !VIDEO_DM365_ISIF
 	depends on HAS_DMA
+	depends on VIDEO_V4L2_SUBDEV_API
+	depends on VIDEO_DAVINCI_VPBE_DISPLAY
 	select VIDEOBUF2_DMA_CONTIG
 	help
 	  Support for DM365 VPFE based Media Controller Capture driver.