Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/powerpc/include/asm/delay.h b/arch/powerpc/include/asm/delay.h
index 3df4417..66963f7 100644
--- a/arch/powerpc/include/asm/delay.h
+++ b/arch/powerpc/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 #ifndef _ASM_POWERPC_DELAY_H
 #define _ASM_POWERPC_DELAY_H
 #ifdef __KERNEL__
@@ -9,11 +10,6 @@
  * Copyright 1996, Paul Mackerras.
  * Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved.
  *
- * 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.
- *
  * PPC64 Support added by Dave Engebretsen, Todd Inglett, Mike Corrigan,
  * Anton Blanchard.
  */