media: platform: delta: move config to its own file

In order to better organize the platform/Kconfig, place
delta-specific config stuff on a separate Kconfig file.
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/Kconfig

@@ -132,41 +132,7 @@ config VIDEO_STI_BDISP
 	help
 	  This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC.
 
-config VIDEO_STI_DELTA
-	tristate "STMicroelectronics DELTA multi-format video decoder V4L2 driver"
-	depends on V4L_MEM2MEM_DRIVERS
-	depends on VIDEO_DEV && VIDEO_V4L2
-	depends on ARCH_STI || COMPILE_TEST
-	help
-		This V4L2 driver enables DELTA multi-format video decoder
-		of STMicroelectronics STiH4xx SoC series allowing hardware
-		decoding of various compressed video bitstream format in
-		raw uncompressed format.
-
-		Use this option to see the decoders available for such
-		hardware.
-
-		Please notice that the driver will only be built if
-		at least one of the DELTA decoder below is selected.
-
-config VIDEO_STI_DELTA_MJPEG
-	bool "STMicroelectronics DELTA MJPEG support"
-	default y
-	depends on VIDEO_STI_DELTA
-	help
-		Enables DELTA MJPEG hardware support.
-
-		To compile this driver as a module, choose M here:
-		the module will be called st-delta.
-
-config VIDEO_STI_DELTA_DRIVER
-	tristate
-	depends on VIDEO_STI_DELTA
-	depends on VIDEO_STI_DELTA_MJPEG
-	default VIDEO_STI_DELTA_MJPEG
-	select VIDEOBUF2_DMA_CONTIG
-	select V4L2_MEM2MEM_DEV
-	select RPMSG
+source "drivers/media/platform/sti/delta/Kconfig"
 
 # DVB platform drivers
 source "drivers/media/platform/sti/c8sectpfe/Kconfig"

drivers/media/platform/sti/delta/Kconfig

+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_STI_DELTA
+	tristate "STMicroelectronics DELTA multi-format video decoder V4L2 driver"
+	depends on V4L_MEM2MEM_DRIVERS
+	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on ARCH_STI || COMPILE_TEST
+	help
+		This V4L2 driver enables DELTA multi-format video decoder
+		of STMicroelectronics STiH4xx SoC series allowing hardware
+		decoding of various compressed video bitstream format in
+		raw uncompressed format.
+
+		Use this option to see the decoders available for such
+		hardware.
+
+		Please notice that the driver will only be built if
+		at least one of the DELTA decoder below is selected.
+
+config VIDEO_STI_DELTA_MJPEG
+	bool "STMicroelectronics DELTA MJPEG support"
+	default y
+	depends on VIDEO_STI_DELTA
+	help
+		Enables DELTA MJPEG hardware support.
+
+		To compile this driver as a module, choose M here:
+		the module will be called st-delta.
+
+config VIDEO_STI_DELTA_DRIVER
+	tristate
+	depends on VIDEO_STI_DELTA
+	depends on VIDEO_STI_DELTA_MJPEG
+	default VIDEO_STI_DELTA_MJPEG
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	select RPMSG