ARM: dts: rockchip: Add display subsystem for RK3128

Add vop and display-subsystem nodes to RK3128's device tree.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20231222174220.55249-28-knaerzche@gmail.com


Signed-off-by: Heiko Stuebner <heiko@sntech.de>