[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/mach-iop13xx/setup.c b/arch/arm/mach-iop13xx/setup.c
index b17ccc8..cfd4d2e 100644
--- a/arch/arm/mach-iop13xx/setup.c
+++ b/arch/arm/mach-iop13xx/setup.c
@@ -18,13 +18,13 @@
  */
 
 #include <linux/serial_8250.h>
+#include <linux/io.h>
 #ifdef CONFIG_MTD_PHYSMAP
 #include <linux/mtd/physmap.h>
 #endif
 #include <asm/mach/map.h>
 #include <mach/hardware.h>
 #include <asm/irq.h>
-#include <asm/io.h>
 #include <asm/hardware/iop_adma.h>
 
 #define IOP13XX_UART_XTAL 33334000