Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index d0b92c1..16f6ba8 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Cryptographic API.
  *
@@ -6,12 +7,6 @@
  * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
  *               2002 Adam J. Richter <adam@yggdrasil.com>
  *               2004 Jean-Luc Cooke <jlcooke@certainkey.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
  */
 
 #include <crypto/scatterwalk.h>