Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/dt-bindings/clock/imx6ul-clock.h b/include/dt-bindings/clock/imx6ul-clock.h
index f8e0476..7909433 100644
--- a/include/dt-bindings/clock/imx6ul-clock.h
+++ b/include/dt-bindings/clock/imx6ul-clock.h
@@ -1,10 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright (C) 2015 Freescale Semiconductor, Inc.
- *
- * 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 __DT_BINDINGS_CLOCK_IMX6UL_H
@@ -259,7 +255,8 @@
 #define IMX6UL_CLK_GPIO3		246
 #define IMX6UL_CLK_GPIO4		247
 #define IMX6UL_CLK_GPIO5		248
+#define IMX6UL_CLK_MMDC_P1_IPG		249
 
-#define IMX6UL_CLK_END			249
+#define IMX6UL_CLK_END			250
 
 #endif /* __DT_BINDINGS_CLOCK_IMX6UL_H */