[media] Kconfig: merge all customise options into just one

Instead of having 3 options to allow customizing the media
sub-drivers (tuners, I2C drivers, frontends), merge all of
them into just one.

That simplifies the life for users, as they can just keep
this untouched.

Life for developers is also simpler, as there's now just
one Kconfig item to remember, for the ancillary sub-drivers
providing supports for chips that could change from one
board design to another.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/usb/cx231xx/Kconfig

@@ -42,9 +42,9 @@ config VIDEO_CX231XX_DVB
 	tristate "DVB/ATSC Support for Cx231xx based TV cards"
 	depends on VIDEO_CX231XX && DVB_CORE && DVB_CAPTURE_DRIVERS
 	select VIDEOBUF_DVB
-	select MEDIA_TUNER_XC5000 if !MEDIA_TUNER_CUSTOMISE
-	select MEDIA_TUNER_TDA18271 if !MEDIA_TUNER_CUSTOMISE
-	select DVB_MB86A20S if !DVB_FE_CUSTOMISE
+	select MEDIA_TUNER_XC5000 if MEDIA_SUBDRV_AUTOSELECT
+	select MEDIA_TUNER_TDA18271 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_MB86A20S if MEDIA_SUBDRV_AUTOSELECT
 
 	---help---
 	  This adds support for DVB cards based on the