rcar_gen3: drivers: staging

 - ddr
 - pfc [pin function controller]
 - qos [bandwidth]

checkpatch.pl is generating too many errors.
diff --git a/drivers/staging/renesas/rcar/pfc/M3/pfc_init_m3.h b/drivers/staging/renesas/rcar/pfc/M3/pfc_init_m3.h
new file mode 100644
index 0000000..c6ee693
--- /dev/null
+++ b/drivers/staging/renesas/rcar/pfc/M3/pfc_init_m3.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright (c) 2015-2017, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PFC_INIT_M3_H__
+#define PFC_INIT_M3_H__
+
+void pfc_init_m3(void);
+
+#endif /* PFC_INIT_M3_H__ */