sh: Add RSK2+SH7269 board

The RSK2+SH7269 board uses the SH7269 processor. It is often
referred to as just rsk7269. NOR Flash, SDRAM, serial, USB Host and
ethernet are working.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/mach-rsk/Kconfig b/arch/sh/boards/mach-rsk/Kconfig
index 4315af5..458a11f 100644
--- a/arch/sh/boards/mach-rsk/Kconfig
+++ b/arch/sh/boards/mach-rsk/Kconfig
@@ -18,6 +18,11 @@
 	select ARCH_REQUIRE_GPIOLIB
 	depends on CPU_SUBTYPE_SH7264
 
+config SH_RSK7269
+	bool "RSK2+SH7269"
+	select ARCH_REQUIRE_GPIOLIB
+	depends on CPU_SUBTYPE_SH7269
+
 endchoice
 
 endif