media: ar0521: fix Kconfig: VIDEO_V4L2 -> VIDEO_DEV

VIDEO_V4L2 no longer exists, instead use VIDEO_DEV. Without this change
this driver cannot be selected.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/i2c/Kconfig

@@ -36,7 +36,7 @@ config VIDEO_CCS_PLL
 
 config VIDEO_AR0521
 	tristate "ON Semiconductor AR0521 sensor support"
-	depends on I2C && VIDEO_V4L2
+	depends on I2C && VIDEO_DEV
 	select MEDIA_CONTROLLER
 	select VIDEO_V4L2_SUBDEV_API
 	select V4L2_FWNODE