Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/sound/wm8960.h b/include/sound/wm8960.h
index e8ce8ee..d22e848 100644
--- a/include/sound/wm8960.h
+++ b/include/sound/wm8960.h
@@ -1,9 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * wm8960.h  --  WM8960 Soc Audio driver platform data
- *
- * 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.
  */
 
 #ifndef _WM8960_PDATA_H