sh: Renesas RSK+ 7203 board support

This adds initial support for the RTE RSK+ SH7203 board.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/MAKEALL b/MAKEALL
index 4803112..46659ff 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -740,6 +740,9 @@
 ## SH Systems
 #########################################################################
 
+LIST_sh2="		\
+	rsk7203		\
+"
 LIST_sh3="		\
 	mpr2		\
 	ms7720se	\