Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/fddidevice.h b/include/linux/fddidevice.h
index 32c22cf..906ee44 100644
--- a/include/linux/fddidevice.h
+++ b/include/linux/fddidevice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the BSD Socket
@@ -13,11 +14,6 @@
  *			Ross Biro
  *			Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *			Alan Cox, <gw4pts@gw4pts.ampr.org>
- *
- *		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 _LINUX_FDDIDEVICE_H
 #define _LINUX_FDDIDEVICE_H