[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-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index 3173f9c..d2e4278 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -30,8 +30,8 @@
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
 #include <linux/reboot.h>
+#include <linux/io.h>
 #include <mach/hardware.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>