ARM: kirkwood: convert Guruplug Server Plus to use the device tree

Add a device tree entry for the Guruplug Server Plus board. This port
was based both on the work done on the dreamplug and the dockstar.

It builds, boots and works on my Guruplug Server Plus.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index f91cdff..7b6a64b 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -58,6 +58,13 @@
 	  Say 'Y' here if you want your kernel to support the
 	  Marvell Kirkwood using flattened device tree.
 
+config MACH_GURUPLUG_DT
+	bool "Marvell GuruPlug Reference Board (Flattened Device Tree)"
+	select ARCH_KIRKWOOD_DT
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell GuruPlug Reference Board (Flattened Device Tree).
+
 config MACH_DREAMPLUG_DT
 	bool "Marvell DreamPlug (Flattened Device Tree)"
 	select ARCH_KIRKWOOD_DT