arm: rmobile: Add support lager board

The lager board has R8A7790, 4GB DDR3-SDRAM, USB, Ethernet, and more.

This patch supports the following functions:
 - DDR3-SDRAM
 - SCIF

Signed-off-by: Kouei Abe <kouei.abe.cp@renesas.com>
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
CC: Albert Aribaud <albert.u.boot@aribaud.net>
diff --git a/board/renesas/lager/qos.h b/board/renesas/lager/qos.h
new file mode 100644
index 0000000..9a6c046
--- /dev/null
+++ b/board/renesas/lager/qos.h
@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2013 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#ifndef __QOS_H__
+#define __QOS_H__
+
+void qos_init(void);
+
+#endif