[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-s3c2443/dma.c b/arch/arm/mach-s3c2443/dma.c
index c1ff03a..5d9ee77 100644
--- a/arch/arm/mach-s3c2443/dma.c
+++ b/arch/arm/mach-s3c2443/dma.c
@@ -16,10 +16,10 @@
 #include <linux/init.h>
 #include <linux/sysdev.h>
 #include <linux/serial_core.h>
+#include <linux/io.h>
 
 #include <asm/dma.h>
 #include <mach/dma.h>
-#include <asm/io.h>
 
 #include <asm/plat-s3c24xx/dma.h>
 #include <asm/plat-s3c24xx/cpu.h>