Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/rtc/rtc-omap.h b/include/linux/rtc/rtc-omap.h
new file mode 100644
index 0000000..9f03a32
--- /dev/null
+++ b/include/linux/rtc/rtc-omap.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _LINUX_RTCOMAP_H_
+#define _LINUX_RTCOMAP_H_
+
+int omap_rtc_power_off_program(struct device *dev);
+#endif /* _LINUX_RTCOMAP_H_ */