Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/net/cfg80211-wext.h b/include/net/cfg80211-wext.h
index 25baddc..ad77caf 100644
--- a/include/net/cfg80211-wext.h
+++ b/include/net/cfg80211-wext.h
@@ -1,13 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 #ifndef __NET_CFG80211_WEXT_H
 #define __NET_CFG80211_WEXT_H
 /*
  * 802.11 device and configuration interface -- wext handlers
  *
  * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
- *
- * 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.
  */
 
 #include <linux/netdevice.h>