Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/net/dsa/mv88e6060.h b/drivers/net/dsa/mv88e6060.h
index 10249bd..6c13c24 100644
--- a/drivers/net/dsa/mv88e6060.h
+++ b/drivers/net/dsa/mv88e6060.h
@@ -1,14 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * drivers/net/dsa/mv88e6060.h - Marvell 88e6060 switch chip support
  * Copyright (c) 2015 Neil Armstrong
  *
  * Based on mv88e6xxx.h
  * Copyright (c) 2008 Marvell Semiconductor
- *
- * 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.
  */
 
 #ifndef __MV88E6060_H
@@ -117,6 +113,7 @@
 	 */
 	struct mii_bus *bus;
 	int sw_addr;
+	struct dsa_switch *ds;
 };
 
 #endif