sunxi: Disable DE2 video driver where not needed

Because DE2 driver is enabled by default, it is nice to disable it on
all boards which don't have any video output. List of such boards is
also much shorter.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
diff --git a/configs/nanopi_neo_defconfig b/configs/nanopi_neo_defconfig
index 89f5687..5afd5d5 100644
--- a/configs/nanopi_neo_defconfig
+++ b/configs/nanopi_neo_defconfig
@@ -16,3 +16,4 @@
 # CONFIG_SPL_EFI_PARTITION is not set
 CONFIG_SUN8I_EMAC=y
 CONFIG_USB_EHCI_HCD=y
+# CONFIG_VIDEO_DE2 is not set