[automerger skipped] Audio: add system usage to audio policy engine schemas...

[automerger skipped] Audio: add system usage to audio policy engine schemas am: d2ab30cb am: 2c17a95f am: 8f6b57b5 -s ours

am skip reason: Merged-In I49a8d3cfeb45eddc95ad6ab4a33b0adf0585cde2 with SHA-1 acd4a677 is already in history

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2719503



Change-Id: If7b194bc86d32e8e368642a83f05725c69b6f01a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>