drm/exynos: Allow DRM_EXYNOS on s5pv210.

This patch brings back possibility to use drivers depending on
DRM_EXYNOS, on Samsung S5PV210/S5PC110 series based systems.

Fixes: dbbc925b ("drm/exynos: depend on ARCH_EXYNOS for DRM_EXYNOS")
Signed-off-by: NPaweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: NInki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/Kconfig

 config DRM_EXYNOS
 	tristate "DRM Support for Samsung SoC EXYNOS Series"
-	depends on OF && DRM && (ARCH_S3C64XX || ARCH_EXYNOS || ARCH_MULTIPLATFORM)
+	depends on OF && DRM && (ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || ARCH_MULTIPLATFORM)
 	select DRM_KMS_HELPER
 	select VIDEOMODE_HELPERS
 	select SND_SOC_HDMI_CODEC if SND_SOC