Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/proc/consoles.c b/fs/proc/consoles.c
index 954caf0..dfe6ce3 100644
--- a/fs/proc/consoles.c
+++ b/fs/proc/consoles.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2010 Werner Fink, Jiri Slaby
- *
- * Licensed under GPLv2
  */
 
 #include <linux/console.h>