tree eae07307fb1e2507a47e5ebd3211484e045d3eee
parent 42afea265a65a4d0b22f5d2f2af72cbbb2631c80
author Eric Laurent <elaurent@google.com> 1575684726 -0800
committer Eric Laurent <elaurent@google.com> 1576100315 +0000

audio: add call assistant usage

Add audio usage for call assistant use cases.
Used by apps playing over call uplink path for call
screening or other in call assitant features.
Add corresponding routing strategy in audio policy manager.
The strategy reuses volume group "PATCH" as volume is fixed
for call uplink audio.

Bug: 135213843
Test: make
Change-Id: Iad34c058e96fa5c969e825d3ddb0a82a60accc76