ARM: multi_v7_defconfig: Enable Samsung media platform drivers as modules

There are a bunch of media platform drivers under drivers/media/platform/
for Samsung SoCs that are enabled in exynos_defconfig but no in multi_v7.

This patch enables them as a module to improve build coverage for these
drivers and also to allow people use them with proper hardware if modules
are installed.
Suggested-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>

arch/arm/configs/multi_v7_defconfig

@@ -526,7 +526,13 @@ CONFIG_SOC_CAMERA=m
 CONFIG_SOC_CAMERA_PLATFORM=m
 CONFIG_VIDEO_RCAR_VIN=m
 CONFIG_VIDEO_ATMEL_ISI=m
+CONFIG_VIDEO_SAMSUNG_EXYNOS4_IS=m
+CONFIG_VIDEO_S5P_FIMC=m
+CONFIG_VIDEO_S5P_MIPI_CSIS=m
+CONFIG_VIDEO_EXYNOS_FIMC_LITE=m
+CONFIG_VIDEO_EXYNOS4_FIMC_IS=m
 CONFIG_V4L_MEM2MEM_DRIVERS=y
+CONFIG_VIDEO_SAMSUNG_S5P_JPEG=m
 CONFIG_VIDEO_RENESAS_JPU=m
 CONFIG_VIDEO_RENESAS_VSP1=m
 # CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set