ARM: dts: rockchip: enable vop0 and hdmi nodes to rk3066a-mk808

This patch enables the vop0 and hdmi nodes
for a MK808 with rk3066 processor.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>