Merge "Dynamic Audio Buffer (2/3)" am: bec3ec265c am: 89e61342a5

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Bluetooth/+/1398394

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Icf53f4c29aa253840a3d16151c59ec82e084029a