media: sunxi: Refactor the Makefile and Kconfig

The Makefile and Kconfig for the sun6i CSI driver are included in the main
Makefile / KConfig file. Since we're going to add a new CSI driver for an
older chip, and the Cedrus driver eventually, it makes more sense to put
those in our directory.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/Kconfig

@@ -146,7 +146,7 @@ source "drivers/media/platform/am437x/Kconfig"
 source "drivers/media/platform/xilinx/Kconfig"
 source "drivers/media/platform/rcar-vin/Kconfig"
 source "drivers/media/platform/atmel/Kconfig"
-source "drivers/media/platform/sunxi/sun6i-csi/Kconfig"
+source "drivers/media/platform/sunxi/Kconfig"
 
 config VIDEO_TI_CAL
 	tristate "TI CAL (Camera Adaptation Layer) driver"

drivers/media/platform/Makefile

@@ -100,4 +100,4 @@ obj-y					+= meson/
 
 obj-y					+= cros-ec-cec/
 
-obj-$(CONFIG_VIDEO_SUN6I_CSI)		+= sunxi/sun6i-csi/
+obj-y					+= sunxi/

drivers/media/platform/sunxi/Kconfig

+source "drivers/media/platform/sunxi/sun6i-csi/Kconfig"

drivers/media/platform/sunxi/Makefile

+obj-y		+= sun6i-csi/