[media] s5p-fimc: Enable FIMC-LITE driver only for SOC_EXYNOS4x12

Allow to compile-in the FIMC-LITE driver only on Exynos4212,
Exynos4412 and Exynos5250 SoC where the device is available.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/platform/s5p-fimc/Kconfig

@@ -31,7 +31,7 @@ config VIDEO_S5P_MIPI_CSIS
 	  To compile this driver as a module, choose M here: the
 	  module will be called s5p-csis.
 
-if ARCH_EXYNOS
+if SOC_EXYNOS4212 || SOC_EXYNOS4412 || SOC_EXYNOS5250
 
 config VIDEO_EXYNOS_FIMC_LITE
 	tristate "EXYNOS FIMC-LITE camera interface driver"