[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-s3c2440/s3c2440.c b/arch/arm/mach-s3c2440/s3c2440.c
index d6b9a92..c81cdb3 100644
--- a/arch/arm/mach-s3c2440/s3c2440.c
+++ b/arch/arm/mach-s3c2440/s3c2440.c
@@ -20,13 +20,13 @@
 #include <linux/serial_core.h>
 #include <linux/sysdev.h>
 #include <linux/clk.h>
+#include <linux/io.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
 #include <mach/hardware.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 
 #include <asm/plat-s3c24xx/s3c2440.h>