[ARM] Convert asm/io.h to linux/io.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 3e76ee2..e622fa2 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/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
  */