add libvehiclenetwork-audio-helper

- with c wrapper
- update vns to pass event when internal property is set while in
  mocking
- fix bug in VehiclePropValueUtil::copyVehicleProp of deleting non-
  string type.

bug: 	25330290

(cherry picked from commit f1b41f92b11e78373f423343b23229d19cdf0af2)

Change-Id: I54ae1faed1f67528bd2928ce23b53c16d19fcab2
diff --git a/tests/libvehiclenetwork-native-test/IVehicleNetworkTestListener.h b/tests/libvehiclenetwork-native-test/IVehicleNetworkTestListener.h
index d96e504..196c556 100644
--- a/tests/libvehiclenetwork-native-test/IVehicleNetworkTestListener.h
+++ b/tests/libvehiclenetwork-native-test/IVehicleNetworkTestListener.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_VEHICLE_TEST_LISTER_H
-#define ANDROID_VEHICLE_TEST_LISTER_H
+#ifndef ANDROID_IVEHICLENETWORK_TEST_LISTER_H
+#define ANDROID_IVEHICLENETWORK_TEST_LISTER_H
 
 #include <IVehicleNetworkListener.h>
 
@@ -132,4 +132,4 @@
 };
 
 }; // namespace android
-#endif // ANDROID_VEHICLE_TEST_LISTER_H
+#endif // ANDROID_IVEHICLENETWORK_TEST_LISTER_H