uboot-phytec

arm: dts: rockchip: puma: move U-Boot specific bits to u-boot.dtsi

Move the U-Boot specific bits to a -u-boot.dtsi include so all the
u-boot.dtsi hierarchy is included.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>