Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/hid/hid-picolcd_debugfs.c b/drivers/hid/hid-picolcd_debugfs.c
index 3e0feb4..d01176d 100644
--- a/drivers/hid/hid-picolcd_debugfs.c
+++ b/drivers/hid/hid-picolcd_debugfs.c
@@ -1,20 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /***************************************************************************
  *   Copyright (C) 2010-2012 by Bruno Prémont <bonbons@linux-vserver.org>  *
  *                                                                         *
  *   Based on Logitech G13 driver (v0.4)                                   *
  *     Copyright (C) 2009 by Rick L. Vinyard, Jr. <rvinyard@cs.nmsu.edu>   *
  *                                                                         *
- *   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, version 2 of the License.               *
- *                                                                         *
- *   This driver 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 software. If not see <http://www.gnu.org/licenses/>.  *
  ***************************************************************************/
 
 #include <linux/hid.h>