Merge "disable audio balance in voip call for mono channel" am: aa35085d53

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2390553

Change-Id: I2285be6f164902b969ba46aaa8eac37a9b8202c1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>