Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/soc/codecs/max98926.h b/sound/soc/codecs/max98926.h
index ccf2c3f..d622d5f 100644
--- a/sound/soc/codecs/max98926.h
+++ b/sound/soc/codecs/max98926.h
@@ -1,9 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * max98926.h -- MAX98926 ALSA SoC Audio driver
  * Copyright 2013-2015 Maxim Integrated Products
- * 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.
  */
 
 #ifndef _MAX98926_H