Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/net/caif/caif_hsi.h b/include/net/caif/caif_hsi.h
index 097f69c..552cf68 100644
--- a/include/net/caif/caif_hsi.h
+++ b/include/net/caif/caif_hsi.h
@@ -1,8 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) ST-Ericsson AB 2010
  * Author:  Daniel Martensson / daniel.martensson@stericsson.com
  *	    Dmitry.Tarnyagin  / dmitry.tarnyagin@stericsson.com
- * License terms: GNU General Public License (GPL) version 2
  */
 
 #ifndef CAIF_HSI_H_