Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c
index dfe40cb..4d0ab32 100644
--- a/arch/ia64/kernel/mca_drv.c
+++ b/arch/ia64/kernel/mca_drv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * File:	mca_drv.c
  * Purpose:	Generic MCA handling layer
@@ -14,7 +15,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/kallsyms.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/acpi.h>
 #include <linux/timer.h>
 #include <linux/module.h>
@@ -25,7 +26,6 @@
 #include <linux/slab.h>
 
 #include <asm/delay.h>
-#include <asm/machvec.h>
 #include <asm/page.h>
 #include <asm/ptrace.h>
 #include <asm/sal.h>