Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/sh/boards/mach-sdk7786/Makefile b/arch/sh/boards/mach-sdk7786/Makefile
index 45d32e3..731a87c 100644
--- a/arch/sh/boards/mach-sdk7786/Makefile
+++ b/arch/sh/boards/mach-sdk7786/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y	:= fpga.o irq.o nmi.o setup.o
 
 obj-$(CONFIG_GPIOLIB)		+= gpio.o
diff --git a/arch/sh/boards/mach-sdk7786/fpga.c b/arch/sh/boards/mach-sdk7786/fpga.c
index 3e4ec66..895576f 100644
--- a/arch/sh/boards/mach-sdk7786/fpga.c
+++ b/arch/sh/boards/mach-sdk7786/fpga.c
@@ -1,17 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SDK7786 FPGA Support.
  *
  * Copyright (C) 2010  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/bcd.h>
 #include <mach/fpga.h>
-#include <asm/sizes.h>
+#include <linux/sizes.h>
 
 #define FPGA_REGS_OFFSET	0x03fff800
 #define FPGA_REGS_SIZE		0x490
diff --git a/arch/sh/boards/mach-sdk7786/gpio.c b/arch/sh/boards/mach-sdk7786/gpio.c
index 4799701..c4587d1 100644
--- a/arch/sh/boards/mach-sdk7786/gpio.c
+++ b/arch/sh/boards/mach-sdk7786/gpio.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SDK7786 FPGA USRGPIR Support.
  *
  * Copyright (C) 2010  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/init.h>
 #include <linux/interrupt.h>
diff --git a/arch/sh/boards/mach-sdk7786/irq.c b/arch/sh/boards/mach-sdk7786/irq.c
index 46943a0..340c306 100644
--- a/arch/sh/boards/mach-sdk7786/irq.c
+++ b/arch/sh/boards/mach-sdk7786/irq.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SDK7786 FPGA IRQ Controller Support.
  *
  * Copyright (C) 2010  Matt Fleming
  * Copyright (C) 2010  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/irq.h>
 #include <mach/fpga.h>
diff --git a/arch/sh/boards/mach-sdk7786/nmi.c b/arch/sh/boards/mach-sdk7786/nmi.c
index edcfa1f..c2e09d7 100644
--- a/arch/sh/boards/mach-sdk7786/nmi.c
+++ b/arch/sh/boards/mach-sdk7786/nmi.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SDK7786 FPGA NMI Support.
  *
  * Copyright (C) 2010  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/init.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/boards/mach-sdk7786/setup.c b/arch/sh/boards/mach-sdk7786/setup.c
index c29268b..d183026 100644
--- a/arch/sh/boards/mach-sdk7786/setup.c
+++ b/arch/sh/boards/mach-sdk7786/setup.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas Technology Europe SDK7786 Support.
  *
  * Copyright (C) 2010  Matt Fleming
  * Copyright (C) 2010  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/init.h>
 #include <linux/platform_device.h>
@@ -22,7 +19,7 @@
 #include <mach/irq.h>
 #include <asm/machvec.h>
 #include <asm/heartbeat.h>
-#include <asm/sizes.h>
+#include <linux/sizes.h>
 #include <asm/clock.h>
 #include <asm/reboot.h>
 #include <asm/smp-ops.h>
diff --git a/arch/sh/boards/mach-sdk7786/sram.c b/arch/sh/boards/mach-sdk7786/sram.c
index c81c3ab..7c6ca97 100644
--- a/arch/sh/boards/mach-sdk7786/sram.c
+++ b/arch/sh/boards/mach-sdk7786/sram.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SDK7786 FPGA SRAM Support.
  *
  * Copyright (C) 2010  Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
@@ -16,7 +13,7 @@
 #include <linux/string.h>
 #include <mach/fpga.h>
 #include <asm/sram.h>
-#include <asm/sizes.h>
+#include <linux/sizes.h>
 
 static int __init fpga_sram_init(void)
 {