Add audio configuration API and the callback function for bluetooth.audo@2.2

For LE audio hardware offload
1. Add the function to update audio configuration without session
restart
2. Add a callback to notify the audio HAL the audio configuration
changed

Bug: 197296692
Bug: 150670922
Test: HAL 2.1/2.2 work for A2DP software/hardware media, and LE audio
software media/voip call

Change-Id: I8b01ec8dfc9d9cd552770c8c734319a685ee626b