Merge "Move libbluetooth_audio_session out of v2.0 folder" am: f83049be6b am: b15b409fdf am: e187b7d309

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1570284

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ieb9c507ddbabfcac9cdad6a6cffbf597cf589cdf