Merge "le_audio: Use broadcast device for broadcasting usecase" into tm-dev am: 61b1cf41

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/17745106



Change-Id: Ib9fedada08ccd5c8d8f5cdd39b18eebeab177492
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>