arm: dts: rockchip: Add rk3528-u-boot.dtsi

Add a rk3528-u-boot.dtsi extending the basic dts/upstream rk3528.dtsi
with bare minimum nodes to have a booting system from eMMC and SD-card.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed