Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 6ab32f6..3ac1f48 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * This file provides /sys/class/ieee80211/<wiphy name>/
  * and some default attributes.
  *
  * Copyright 2005-2006	Jiri Benc <jbenc@suse.cz>
  * Copyright 2006	Johannes Berg <johannes@sipsolutions.net>
- *
- * This file is GPLv2 as found in COPYING.
  */
 
 #include <linux/device.h>