dmc node is specific to U-Boot, it is always better practice to maintain U-Boot specific nodes into -u-boot.dtsi files in order to maintain Linux dts file sync compatibility. Move the dmc into px30-u-boot.dtsi, also add dmc node explicitly in rk3326-odroid-go2-u-boot.dtsi since it is using px30.dts. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>