hwc2: Add support to handle QDCM frame capture

Re-introduce the special handling for QDCM frame capture path, as
the client can check the status of frame capture operation, a few
frames after the captured frame. In Concurrent Writeback, all the
members should get cleared at the end of current draw cycle.

CRs-Fixed: 2365252
Change-Id: Ia5b1340249bab3d312a0bbc59027d9d5bcc5d397
4 files changed