ARM: configs: sunxi: Add DRM output-related options

We're missing a bunch of options related to the DRM driver options (panels,
HDMI, CEC) that seems useful. Let's add them in the defconfig.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200705091904.42795-5-maxime@cerno.techAcked-by: Chen-Yu Tsai <wens@csie.org>

arch/arm/configs/sunxi_defconfig

@@ -102,8 +102,15 @@ CONFIG_VIDEO_SUN8I_DEINTERLACE=y
 CONFIG_VIDEO_SUN8I_ROTATE=y
 CONFIG_DRM=y
 CONFIG_DRM_SUN4I=y
+CONFIG_DRM_SUN4I_HDMI_CEC=y
+CONFIG_DRM_SUN8I_DW_HDMI=y
+CONFIG_DRM_PANEL_LVDS=y
+CONFIG_DRM_PANEL_SIMPLE=y
 CONFIG_DRM_SIMPLE_BRIDGE=y
 CONFIG_FB_SIMPLE=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+# CONFIG_BACKLIGHT_GENERIC is not set
+CONFIG_BACKLIGHT_PWM=y
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_SOC=y