Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/dt-bindings/power/raspberrypi-power.h b/include/dt-bindings/power/raspberrypi-power.h
index b3ff8e0..3575f9f 100644
--- a/include/dt-bindings/power/raspberrypi-power.h
+++ b/include/dt-bindings/power/raspberrypi-power.h
@@ -1,9 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright © 2015 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef _DT_BINDINGS_ARM_BCM2835_RPI_POWER_H