ARM: imx: get rid of mxc_gpio_init

This function is defined once for each imx family and so is in the way
when compiling a kernel for more than one SoC.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c
index db7acd6..f6da0ff 100644
--- a/arch/arm/mach-mx3/devices.c
+++ b/arch/arm/mach-mx3/devices.c
@@ -147,7 +147,7 @@
 	}
 };
 
-int __init mxc_register_gpios(void)
+int __init imx3x_register_gpios(void)
 {
 	return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
 }