add CODEOWNERS.

Signed-off-by: NAustin <liaozhiqi7@huawei.com>

CODEOWNERS

+/*
+ * Copyright (c) 2021-2022 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.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+zh-cn/device-dev/kernel/ @Austin23
+zh-cn/device-dev/website.md @Austin23
+README.md @Austin23
+zh-cn/device-dev/porting duangavin123_admin
+zh-cn/device-dev/guide duangavin123_admin
+zh-cn/device-dev/subsystems li-yan339
\ No newline at end of file