Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/hwmon/max197.c b/drivers/hwmon/max197.c
index 3d9e210..56add57 100644
--- a/drivers/hwmon/max197.c
+++ b/drivers/hwmon/max197.c
@@ -1,14 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Maxim MAX197 A/D Converter driver
  *
  * Copyright (c) 2012 Savoir-faire Linux Inc.
  *          Vivien Didelot <vivien.didelot@savoirfairelinux.com>
  *
- * 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.
- *
- * For further information, see the Documentation/hwmon/max197 file.
+ * For further information, see the Documentation/hwmon/max197.rst file.
  */
 
 #include <linux/kernel.h>