Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/greybus/manifest.h b/include/linux/greybus/manifest.h
new file mode 100644
index 0000000..830301b
--- /dev/null
+++ b/include/linux/greybus/manifest.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Greybus manifest parsing
+ *
+ * Copyright 2014 Google Inc.
+ * Copyright 2014 Linaro Ltd.
+ */
+
+#ifndef __MANIFEST_H
+#define __MANIFEST_H
+
+#include <linux/types.h>
+
+struct gb_interface;
+bool gb_manifest_parse(struct gb_interface *intf, void *data, size_t size);
+
+#endif /* __MANIFEST_H */