Offset direct/offload timestamps by downstream latency

Test: A/V sync of direct/offload DD+ non HW A/V sync playback thread
      through MSD, and MSD -> Audio HAL patch in DD+ non HW A/V sync
      mode.
Change-Id: I244e9fda9741fe9a9ea913f39901654ebefb973c
(cherry picked from commit 8729c2eb3eabda3f6b6985a113bd2022b5b379c9)
2 files changed