Add Bluetooth Audio HAL rules

Test: manual
Bug: 203490261
Change-Id: Ic9994cdb8ed690996d83b46cfefbc228e35d34c3
diff --git a/private/bluetooth.te b/private/bluetooth.te
index 0e0cf7f..5522e32 100644
--- a/private/bluetooth.te
+++ b/private/bluetooth.te
@@ -62,6 +62,7 @@
 allow bluetooth system_api_service:service_manager find;
 allow bluetooth network_stack_service:service_manager find;
 allow bluetooth system_suspend_control_service:service_manager find;
+allow bluetooth hal_audio_service:service_manager find;
 
 # already open bugreport file descriptors may be shared with
 # the bluetooth process, from a file in