Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/scripts/extract_xc3028.pl b/scripts/extract_xc3028.pl
index a1c51b7..e1c9af2 100755
--- a/scripts/extract_xc3028.pl
+++ b/scripts/extract_xc3028.pl
@@ -1,7 +1,7 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0-only
 
 # Copyright (c) Mauro Carvalho Chehab <mchehab@kernel.org>
-# Released under GPLv2
 #
 # In order to use, you need to:
 #	1) Download the windows driver with something like: