Update android.hardware.bluetooth.audio to V3 am: 6945dd3bb3

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2429183

Change-Id: I31fe6091cc16f08eb54dcb84ce7daf8b5960dc6e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>