This is required for audio input direction HAL session support.
Bug:
Tag: #feature
Test: vts-tradefed run vts -m VtsHalBluetoothAudioV2_1TargetTest
Sponsor: jpawlowski@
Change-Id: I3cd25f4af0c5c16074b17dd128de95dd53978379
libbluetooth_audio_session must be version agnostic, and support both
2.0 and 2.1 bluetooth.audio vendor libraries
Test: compilation
Bug: 150670922
Change-Id: I487022b28a471960e669b9794808dd53b1bdca17