Add le audio capabilities and audio config update supported in aidl am: 60b00151bd am: 914dc1db66 am: 91ea7b97d6 am: 03f9bc5d04

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1942861

Change-Id: Ibc43f3e05897fc0dd73023e3ae6bf6435dd7f8a2