Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/scripts/coccinelle/iterators/itnull.cocci b/scripts/coccinelle/iterators/itnull.cocci
index f58732b..9b362b9 100644
--- a/scripts/coccinelle/iterators/itnull.cocci
+++ b/scripts/coccinelle/iterators/itnull.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /// Many iterators have the property that the first argument is always bound
 /// to a real list element, never NULL.
 //# False positives arise for some iterators that do not have this property,
@@ -6,9 +7,9 @@
 //# or return).
 ///
 // Confidence: Moderate
-// Copyright: (C) 2010-2012 Nicolas Palix.  GPLv2.
-// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.  GPLv2.
-// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.  GPLv2.
+// Copyright: (C) 2010-2012 Nicolas Palix.
+// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6.
+// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6.
 // URL: http://coccinelle.lip6.fr/
 // Comments:
 // Options: --no-includes --include-headers