Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/mfd/intel_msic.h b/include/linux/mfd/intel_msic.h
index 439a7a6..317e860 100644
--- a/include/linux/mfd/intel_msic.h
+++ b/include/linux/mfd/intel_msic.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
- * include/linux/mfd/intel_msic.h - Core interface for Intel MSIC
+ * Core interface for Intel MSIC
  *
  * Copyright (C) 2011, Intel Corporation
  * Author: Mika Westerberg <mika.westerberg@linux.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.
  */
 
 #ifndef __LINUX_MFD_INTEL_MSIC_H__