Camera2: Don't touch frame counter on output frames.

Bug: 7357069
Change-Id: I9cd0cdcc23959bfecced5f47bb9e8c59c997dade
diff --git a/services/camera/libcameraservice/Camera2Device.h b/services/camera/libcameraservice/Camera2Device.h
index 29830bd..41df2e4 100644
--- a/services/camera/libcameraservice/Camera2Device.h
+++ b/services/camera/libcameraservice/Camera2Device.h
@@ -230,7 +230,7 @@
         // Real interfaces. On enqueue, queue takes ownership of buffer pointer
         // On dequeue, user takes ownership of buffer pointer.
         status_t enqueue(camera_metadata_t *buf);
-        status_t dequeue(camera_metadata_t **buf, bool incrementCount = true);
+        status_t dequeue(camera_metadata_t **buf, bool incrementCount = false);
         int      getBufferCount();
         status_t waitForBuffer(nsecs_t timeout);
         // Wait until a buffer with the given ID is dequeued. Will return