sh: Add support Renesas Solutions Migo-R board

Migo-R is a board based on SH7722 and has may devices.
In this patch, supported SCIF, NOR flash and Ethernet.

Signed-off-by: Yusuke Goda <goda.yusuke@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/MAKEALL b/MAKEALL
index 01573da..3e18547 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -699,6 +699,7 @@
 LIST_sh4="		\
 	ms7750se	\
 	ms7722se	\
+	Migo-R		\
 "
 
 LIST_sh3="		\