Camera: patching camera service for treble

Bug: 30985004
Change-Id: Idf3ec26abb6b10a0e3839e301e84c8b05ac165c5
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.h b/services/camera/libcameraservice/common/CameraProviderManager.h
index 345863c..641dab4 100644
--- a/services/camera/libcameraservice/common/CameraProviderManager.h
+++ b/services/camera/libcameraservice/common/CameraProviderManager.h
@@ -194,6 +194,8 @@
     // All private members, unless otherwise noted, expect mInterfaceMutex to be locked before use
     mutable std::mutex mInterfaceMutex;
 
+    // the status listener update callbacks will lock mStatusMutex
+    mutable std::mutex mStatusListenerMutex;
     wp<StatusListener> mListener;
     ServiceInteractionProxy* mServiceProxy;