Sync gpio changes from mainline

This is to be in sync with Russell's commit 7c7095aa.
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/plat-omap/gpio.c

@@ -17,6 +17,7 @@
 #include <linux/sysdev.h>
 #include <linux/err.h>
 #include <linux/clk.h>
+#include <linux/io.h>
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
@@ -24,8 +25,6 @@
 #include <mach/gpio.h>
 #include <asm/mach/irq.h>
 
-#include <asm/io.h>
-
 /*
  * OMAP1510 GPIO registers
  */

arch/arm/plat-omap/include/mach/gpio.h

@@ -26,8 +26,8 @@
 #ifndef __ASM_ARCH_OMAP_GPIO_H
 #define __ASM_ARCH_OMAP_GPIO_H
 
+#include <linux/io.h>
 #include <mach/irqs.h>
-#include <asm/io.h>
 
 #define OMAP_MPUIO_BASE			0xfffb5000