Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/net/caif/caif_spi.h b/include/net/caif/caif_spi.h
index aa6a485..a0bf4cb 100644
--- a/include/net/caif/caif_spi.h
+++ b/include/net/caif/caif_spi.h
@@ -1,7 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) ST-Ericsson AB 2010
  * Author:	Daniel Martensson / Daniel.Martensson@stericsson.com
- * License terms: GNU General Public License (GPL) version 2
  */
 
 #ifndef CAIF_SPI_H_