Merge "le_audio: Implement voice back channel support" into tm-dev am: 36fb8ceb am: 6d383468

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/18351776



Change-Id: I2ed4395ec248dcf6210eede61c6df94a26705a89
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>