sh: Renesas Solutions SH7763RDP board support

SH7763RDP has SCIF, NOR Flash, Ethernet, USB host, LCDC and MMC.
In this patch, support SCIF, NOR Flash, and Ethernet.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index d3dfd48..b3daaeb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -718,6 +718,7 @@
 	MS7722SE		SH7722
 	R7780MP			SH7780
 	R2DPlus			SH7751R
+	SH7763RDP		SH7763
 
 Mark Jonas <mark.jonas@de.bosch.com>