[automerger skipped] Add AudioAttributes and AudioFlag for use in HAL...

[automerger skipped] Add AudioAttributes and AudioFlag for use in HAL interface for engine configuration. am: 8132989a am: 85297887 -s ours am: a8907557 -s ours am: 0c3c4f30 -s ours am: ca2b1dbf -s ours

am skip reason: Merged-In I1ee1f7442a6c037caa45c04d3b3d1df2243b30b8 with SHA-1 160836ea is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2203456



Change-Id: If6d923160f42f084bc9a79f3d3086a04060f8750
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>