Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/dt-bindings/clock/s3c2410.h b/include/dt-bindings/clock/s3c2410.h
index 352a767..0fb65c3 100644
--- a/include/dt-bindings/clock/s3c2410.h
+++ b/include/dt-bindings/clock/s3c2410.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * Device Tree binding constants clock controllers of Samsung S3C2410 and later.
  */