Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/scripts/checkkconfigsymbols.py b/scripts/checkkconfigsymbols.py
index 8cd16c6..00a10a2 100755
--- a/scripts/checkkconfigsymbols.py
+++ b/scripts/checkkconfigsymbols.py
@@ -1,11 +1,11 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-only
 
 """Find Kconfig symbols that are referenced but not defined."""
 
 # (c) 2014-2017 Valentin Rothberg <valentinrothberg@gmail.com>
 # (c) 2014 Stefan Hengelein <stefan.hengelein@fau.de>
 #
-# Licensed under the terms of the GNU GPL License version 2
 
 
 import argparse