drm/rockchip: vop: restore vop registers when resume
drm/rockchip: vop: restore vop registers when resume

The registers will be reset to default values when whole
power domain off, so restore registers from regsbak.

Signed-off-by: Mark Yao <02a1f934a8f8e15762fa0cc676ca9ba75e0db935@rock-chips.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs