[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: dd2b7eb5 am: 22ca577f am: 13792816 -s ours

am skip reason: Merged-In Id17820f210f625e370992db4f9f85e37887b088b with SHA-1 bf94fa32 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/19874524



Change-Id: Ida03f18e9fa49ee94ab9beb147dce7a13cd1b2c5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>