-- For UI updates, mark the MDP pipe for single layer YUV to be NO_WAIT. -- Remove premature unlocking of buffers, except error cases. -- Unlock buffers only after a single Vsync (PAN or PLAY) and after pipe UNSET. This ensures smooth transition from MDP to GPU and prevents tearing. Change-Id: Icfcb770dae12d4a7e0ff96d04149b2eaf0c07121 CRs-fixed: 359140