fix:copyright update

Change-Id: I179f8b1b86933dec2a82bf977153c638407a0ce1

build/update_headers.py

 #!/usr/bin/env python
 #-*-coding:utf-8-*-
 
-#Copyright (c) 2010-2019 Huawei Technologies Co., Ltd.
 #Copyright (c) 2020-2021 Huawei Device Co., Ltd.
 #Licensed under the Apache License, Version 2.0 (the "License");
 #you may not use this file except in compliance with the License.