Merge "[le audio] Update LE broadcast APIs to support Public Broadcast"

android/app/jni/com_android_bluetooth_le_audio.cpp

...pp/src/com/android/bluetooth/le_audio/LeAudioService.java

...src/com/android/bluetooth/le_audio/LeAudioBinderTest.java

...droid/bluetooth/le_audio/LeAudioBroadcastServiceTest.java

...rc/com/android/bluetooth/le_audio/LeAudioServiceTest.java

framework/api/system-current.txt

framework/java/android/bluetooth/BluetoothLeBroadcast.java

.../java/android/bluetooth/BluetoothLeBroadcastMetadata.java

.../java/android/bluetooth/BluetoothLeBroadcastSettings.java

...droid/bluetooth/BluetoothLeBroadcastSubgroupSettings.java

...inder/android/bluetooth/BluetoothLeBroadcastSettings.aidl

system/binder/android/bluetooth/IBluetoothLeAudio.aidl