ARM: multi_v7: Enable sun4i DRM driver

Enable the new DRM driver in the multi_v7 defconfig
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/configs/multi_v7_defconfig

@@ -552,6 +552,7 @@ CONFIG_DRM_ATMEL_HLCDC=m
 CONFIG_DRM_RCAR_DU=m
 CONFIG_DRM_RCAR_HDMI=y
 CONFIG_DRM_RCAR_LVDS=y
+CONFIG_DRM_SUN4I=m
 CONFIG_DRM_TEGRA=y
 CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0=m
 CONFIG_DRM_PANEL_SIMPLE=y