video: enable VIDEO_ANSI and all VIDEO_BBP options

This partially reverts changes by commit 2cc393f32fd9
("video: make BPP and ANSI configs optional") since it
caused issues with other boards (missing LCD console
output on pinebook, x86 platform or sandbox). Enable
all disabled options again and opt out of not supported
color depth in board defconfigs.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Reported-by: Vagrant Cascadian <vagrant@debian.org>
diff --git a/configs/mx6sabresd_defconfig b/configs/mx6sabresd_defconfig
index a5a34ec..c6cd1e3 100644
--- a/configs/mx6sabresd_defconfig
+++ b/configs/mx6sabresd_defconfig
@@ -100,6 +100,7 @@
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_ASIX=y
 CONFIG_DM_VIDEO=y
-CONFIG_VIDEO_BPP16=y
+# CONFIG_VIDEO_BPP8 is not set
+# CONFIG_VIDEO_BPP32 is not set
 CONFIG_SYS_WHITE_ON_BLACK=y
 CONFIG_VIDEO_IPUV3=y