drm/amd/display: Revised for Replay Pseudo vblank control

[why]
Revised Replay Full screen video Pseudo vblank control.

Reviewed-by: ChunTao Tso <chuntao.tso@amd.com>
Signed-off-by: Dennis Chan <dennis.chan@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>