media: via: Use correct dependency for camera sensor drivers

The via camera controller driver selected ov7670 driver, however now that
driver has dependencies and may no longer be selected unconditionally.

Reported-by: Randy Dunlap <[e-mail]>
Fixes: 7d3c7d2a2914 ("media: i2c: Add a camera sensor top level menu")
Signed-off-by: Sakari Ailus <[e-mail]>
Acked-by: Randy Dunlap <[e-mail]>
Tested-by: Randy Dunlap <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/platform/via/Kconfig

···
 	depends on V4L_PLATFORM_DRIVERS
 	depends on FB_VIA && VIDEO_DEV
 	select VIDEOBUF2_DMA_SG
-	select VIDEO_OV7670
+	select VIDEO_OV7670 if VIDEO_CAMERA_SENSOR
 	help
 	   Driver support for the integrated camera controller in VIA
 	   Chrome9 chipsets.  Currently only tested on OLPC xo-1.5 systems