media: platform: mtk-mdp: move config to its own file

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

drivers/media/platform/Kconfig

@@ -49,6 +49,7 @@ source "drivers/media/platform/davinci/Kconfig"
 source "drivers/media/platform/exynos-gsc/Kconfig"
 source "drivers/media/platform/meson/ge2d/Kconfig"
 source "drivers/media/platform/mtk-jpeg/Kconfig"
+source "drivers/media/platform/mtk-mdp/Kconfig"
 source "drivers/media/platform/omap/Kconfig"
 
 source "drivers/media/platform/aspeed/Kconfig"
@@ -196,23 +197,6 @@ config VIDEO_MEDIATEK_VPU
 	    To compile this driver as a module, choose M here: the
 	    module will be called mtk-vpu.
 
-config VIDEO_MEDIATEK_MDP
-	tristate "Mediatek MDP driver"
-	depends on V4L_MEM2MEM_DRIVERS
-	depends on MTK_IOMMU || COMPILE_TEST
-	depends on VIDEO_DEV && VIDEO_V4L2
-	depends on ARCH_MEDIATEK || COMPILE_TEST
-	depends on MTK_SMI || (COMPILE_TEST && MTK_SMI=n)
-	select VIDEOBUF2_DMA_CONTIG
-	select V4L2_MEM2MEM_DEV
-	select VIDEO_MEDIATEK_VPU
-	help
-	    It is a v4l2 driver and present in Mediatek MT8173 SoCs.
-	    The driver supports for scaling and color space conversion.
-
-	    To compile this driver as a module, choose M here: the
-	    module will be called mtk-mdp.
-
 config VIDEO_MEDIATEK_VCODEC
 	tristate "Mediatek Video Codec driver"
 	depends on V4L_MEM2MEM_DRIVERS

drivers/media/platform/mtk-mdp/Kconfig

+# SPDX-License-Identifier: GPL-2.0-only
+config VIDEO_MEDIATEK_MDP
+	tristate "Mediatek MDP driver"
+	depends on V4L_MEM2MEM_DRIVERS
+	depends on MTK_IOMMU || COMPILE_TEST
+	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	depends on MTK_SMI || (COMPILE_TEST && MTK_SMI=n)
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	select VIDEO_MEDIATEK_VPU
+	help
+	    It is a v4l2 driver and present in Mediatek MT8173 SoCs.
+	    The driver supports for scaling and color space conversion.
+
+	    To compile this driver as a module, choose M here: the
+	    module will be called mtk-mdp.