Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index 7fde40e..52aa482 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -1,4 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2013-2016, Intel Corporation. All rights reserved.
+ */
 #ifndef _LINUX_MEI_CL_BUS_H
 #define _LINUX_MEI_CL_BUS_H
 
@@ -55,6 +58,8 @@
 	void *priv_data;
 };
 
+#define to_mei_cl_device(d) container_of(d, struct mei_cl_device, dev)
+
 struct mei_cl_driver {
 	struct device_driver driver;
 	const char *name;