Change to use aom copyright notice

This minimize code differences between AOM master and nextgenv2

Change-Id: If144865bdf3ef0818e7aac11018b9e786444c550

video_reader.h

diff --git a/video_reader.h b/video_reader.h
index daf4dc4..962c665 100644
--- a/video_reader.h
+++ b/video_reader.h
@@ -1,11 +1,12 @@
 /*
- *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
  *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
  */
 
 #ifndef VIDEO_READER_H_