fix wrong warning from audio hal service

- internally tagged type does not have any audio context type associated

Change-Id: Idda725f01394fa3a6559f89c135c1b26a24efd61
diff --git a/service/src/com/android/car/hal/AudioHalService.java b/service/src/com/android/car/hal/AudioHalService.java
index dd7d5a7..5208787 100644
--- a/service/src/com/android/car/hal/AudioHalService.java
+++ b/service/src/com/android/car/hal/AudioHalService.java
@@ -19,6 +19,7 @@
 import android.util.Log;
 
 import com.android.car.AudioRoutingPolicy;
+import com.android.car.CarAudioAttributesUtil;
 import com.android.car.CarLog;
 import com.android.car.vehiclenetwork.VehicleNetwork;
 import com.android.car.vehiclenetwork.VehicleNetworkConsts;
@@ -229,6 +230,10 @@
                 return VehicleAudioContextFlag.VEHICLE_AUDIO_CONTEXT_SYSTEM_SOUND_FLAG;
             case CarAudioManager.CAR_AUDIO_USAGE_DEFAULT:
                 return VehicleAudioContextFlag.VEHICLE_AUDIO_CONTEXT_UNKNOWN_FLAG;
+            case CarAudioAttributesUtil.CAR_AUDIO_USAGE_CARSERVICE_BOTTOM:
+            case CarAudioAttributesUtil.CAR_AUDIO_USAGE_CARSERVICE_CAR_PROXY:
+                // internal tag not associated with any stream
+                return 0;
             default:
                 Log.w(CarLog.TAG_AUDIO, "Unknown logical stream:" + logicalStream);
                 return 0;