linux-wandboard

MLK-16814-1: arm64: dts: imx8mq-evk: copy default dts and add fbdev suffix

Default dts will use DRM, hence this one will not be used anymore.
However, other people may find fbdev drivers useful. So, instead of
deleting it, copy it and add fbdev suffix to the dts name.

This patch preceeds another patch that will make drm dts default.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>