Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/dt-bindings/clock/imx6sll-clock.h b/include/dt-bindings/clock/imx6sll-clock.h
index 1036475..f446710 100644
--- a/include/dt-bindings/clock/imx6sll-clock.h
+++ b/include/dt-bindings/clock/imx6sll-clock.h
@@ -203,7 +203,8 @@
 #define IMX6SLL_CLK_GPIO4               176
 #define IMX6SLL_CLK_GPIO5               177
 #define IMX6SLL_CLK_GPIO6               178
+#define IMX6SLL_CLK_MMDC_P1_IPG		179
 
-#define IMX6SLL_CLK_END			179
+#define IMX6SLL_CLK_END			180
 
 #endif /* __DT_BINDINGS_CLOCK_IMX6SLL_H */