Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/net/wimax/i2400m/debug-levels.h b/drivers/net/wimax/i2400m/debug-levels.h
index 48fbfaa..00942bb 100644
--- a/drivers/net/wimax/i2400m/debug-levels.h
+++ b/drivers/net/wimax/i2400m/debug-levels.h
@@ -1,24 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Intel Wireless WiMAX Connection 2400m
  * Debug levels control file for the i2400m module
  *
- *
  * Copyright (C) 2007-2008 Intel Corporation <linux-wimax@intel.com>
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
  */
 #ifndef __debug_levels__h__
 #define __debug_levels__h__