sh: Add support for Solution Engine SH7721 board

Add support for Solution Engine SH7721 board(MS7721RP01).

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 5b94cac..df2e2f9 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -372,6 +372,14 @@
 	  Select 7619 SolutionEngine if configuring for a Hitachi SH7619
 	  evaluation board.
 	
+config SH_7721_SOLUTION_ENGINE
+	bool "SolutionEngine7721"
+	select SOLUTION_ENGINE
+	depends on CPU_SUBTYPE_SH7721
+	help
+	  Select 7721 SolutionEngine if configuring for a Hitachi SH7721
+	  evaluation board.
+
 config SH_7722_SOLUTION_ENGINE
 	bool "SolutionEngine7722"
 	select SOLUTION_ENGINE