Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/sound/usb/line6/capture.h b/sound/usb/line6/capture.h
index b67ccc3..20e05a5 100644
--- a/sound/usb/line6/capture.h
+++ b/sound/usb/line6/capture.h
@@ -1,12 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Line 6 Linux USB driver
  *
  * Copyright (C) 2004-2010 Markus Grabner (grabner@icg.tugraz.at)
- *
- *	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.
- *
  */
 
 #ifndef CAPTURE_H