Merge "AudioPolicyService: Acquire mutex for SoundTriggerSession" into mnc-dev am: e472e51100 am: 0a8a0c4474 am: ae465be454 am: b995c31415 am: d08327d1a2 am: 74f84d987b am: 355a18f58d
am: c8f3cf02eb

Change-Id: I7c984be87df715dbc6fe5ecc44691e001d7ff09f