Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/arm/boot/dts/at91-kizbox.dts b/arch/arm/boot/dts/at91-kizbox.dts
index 1003846..90996ea 100644
--- a/arch/arm/boot/dts/at91-kizbox.dts
+++ b/arch/arm/boot/dts/at91-kizbox.dts
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * at91-kizbox.dts - Device Tree file for Overkiz Kizbox board
  *
  * Copyright (C) 2012-2014 Boris BREZILLON <b.brezillon@overkiz.com>
  *               2014-2015 Gaël PORTAY <g.portay@overkiz.com>
- *
- * Licensed under GPLv2 or later.
  */
 /dts-v1/;
 #include "at91sam9g20.dtsi"