Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index 0c826ad..e4a7857 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * OpenRISC entry.S
  *
@@ -9,11 +10,6 @@
  * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
  * Copyright (C) 2005 Gyorgy Jeney <nog@bsemi.com>
  * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
- *
- *      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 <linux/linkage.h>
@@ -240,7 +236,7 @@
  *	 occured. in fact they never do. if you need them use
  *	 values saved on stack (for SPR_EPC, SPR_ESR) or content
  *       of r4 (for SPR_EEAR). for details look at EXCEPTION_HANDLE()
- *       in 'arch/or32/kernel/head.S'
+ *       in 'arch/openrisc/kernel/head.S'
  */
 
 /* =====================================================[ exceptions] === */