修改include/libc头文件版权信息格式

include/libc/libc_fcntl.h

@@ -2,10 +2,6 @@
  * Copyright (c) 2006-2018, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- */
-
-/*
- * File      : libc_fcntl.h
  *
  * Change Logs:
  * Date           Author       Notes

include/libc/libc_fdset.h

@@ -2,10 +2,6 @@
  * Copyright (c) 2006-2018, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- */
-
-/*
- * File      : libc_errno.h
  *
  * Change Logs:
  * Date           Author       Notes

include/libc/libc_ioctl.h

@@ -2,10 +2,6 @@
  * Copyright (c) 2006-2018, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- */
-
-/*
- * File      : libc_ioctl.h
  *
  * Change Logs:
  * Date           Author       Notes

include/libc/libc_limits.h

@@ -2,10 +2,6 @@
  * Copyright (c) 2006-2018, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- */
-
-/*
- * File      : libc_limits.h
  *
  * Change Logs:
  * Date                 Author             Notes

include/libc/libc_stdio.h

@@ -2,10 +2,6 @@
  * Copyright (c) 2006-2018, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
- */
-
-/*
- * File      : libc_stdio.h
  *
  * Change Logs:
  * Date                 Author             Notes