Camera: Add physicalCameraId to OutputConfiguration

Add physical camera ID in OutputConfiguration so that the application
can optionally set physical camera id for an output stream.

Test: Camera CTS
Bug: 64691172
Change-Id: I5909cd71618cc07ef403c420913eb1c02f1e10f0
diff --git a/services/camera/libcameraservice/device3/Camera3InputStream.h b/services/camera/libcameraservice/device3/Camera3InputStream.h
index 81226f8..0732464 100644
--- a/services/camera/libcameraservice/device3/Camera3InputStream.h
+++ b/services/camera/libcameraservice/device3/Camera3InputStream.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 The Android Open Source Project
+ * Copyright (C) 2013-2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -53,6 +53,8 @@
     sp<IGraphicBufferProducer> mProducer;
     Vector<BufferItem> mBuffersInFlight;
 
+    static const String8 DUMMY_ID;
+
     /**
      * Camera3IOStreamBase
      */