sh: kfr2r09 board support - mach-type and defconfig

This patch adds a defconfig and a mach-types entry for
the kfr2r09 board.

At this point only a few devices like SCIF, KEYSC and
NOR Flash are supported together with sh7724 devices
such as IIC0, IIC1 and the multimedia blocks exported
via UIO.

Kexec is supported, but booting from flash is not (yet).
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/tools/mach-types

@@ -56,3 +56,4 @@ SH7785LCR		SH_SH7785LCR
 URQUELL			SH_URQUELL
 ESPT			SH_ESPT
 POLARIS			SH_POLARIS
+KFR2R09			SH_KFR2R09