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

In order to better organize the platform/Kconfig, place
mtk-vpu-specific config stuff on a separate Kconfig file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/Kconfig

@@ -51,6 +51,7 @@ 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/mtk-vcodec/Kconfig"
+source "drivers/media/platform/mtk-vpu/Kconfig"
 source "drivers/media/platform/omap/Kconfig"
 
 source "drivers/media/platform/aspeed/Kconfig"
@@ -184,20 +185,6 @@ config VIDEO_TI_CAL_MC
 
 # Mem2mem drivers
 
-config VIDEO_MEDIATEK_VPU
-	tristate "Mediatek Video Processor Unit"
-	depends on V4L_MEM2MEM_DRIVERS
-	depends on VIDEO_DEV && VIDEO_V4L2
-	depends on ARCH_MEDIATEK || COMPILE_TEST
-	help
-	    This driver provides downloading VPU firmware and
-	    communicating with VPU. This driver for hw video
-	    codec embedded in Mediatek's MT8173 SOCs. It is able
-	    to handle video decoding/encoding in a range of formats.
-
-	    To compile this driver as a module, choose M here: the
-	    module will be called mtk-vpu.
-
 config VIDEO_MEM2MEM_DEINTERLACE
 	tristate "Deinterlace support"
 	depends on V4L_MEM2MEM_DRIVERS

drivers/media/platform/mtk-vpu/Kconfig

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config VIDEO_MEDIATEK_VPU
+	tristate "Mediatek Video Processor Unit"
+	depends on V4L_MEM2MEM_DRIVERS
+	depends on VIDEO_DEV && VIDEO_V4L2
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	help
+	    This driver provides downloading VPU firmware and
+	    communicating with VPU. This driver for hw video
+	    codec embedded in Mediatek's MT8173 SOCs. It is able
+	    to handle video decoding/encoding in a range of formats.
+
+	    To compile this driver as a module, choose M here: the
+	    module will be called mtk-vpu.