ARM: orion: move custom gpio functions to orion-gpio.h

Move custom orion platforms gpio code to orion-gpio to remove the
dependency on mach/gpio.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
diff --git a/arch/arm/mach-orion5x/d2net-setup.c b/arch/arm/mach-orion5x/d2net-setup.c
index d75dcfa..e3629c0 100644
--- a/arch/arm/mach-orion5x/d2net-setup.c
+++ b/arch/arm/mach-orion5x/d2net-setup.c
@@ -27,6 +27,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/pci.h>
 #include <mach/orion5x.h>
+#include <plat/orion-gpio.h>
 #include "common.h"
 #include "mpp.h"