Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c
index 3c3b1e6..39052de 100644
--- a/arch/mips/pci/pci-legacy.c
+++ b/arch/mips/pci/pci-legacy.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
- * 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.
  *
  * Copyright (C) 2003, 04, 11 Ralf Baechle (ralf@linux-mips.org)
  * Copyright (C) 2011 Wind River Systems,
@@ -11,7 +8,7 @@
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/types.h>