[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-versatile/pci.c b/arch/arm/mach-versatile/pci.c
index 36f23f8..7161ba2 100644
--- a/arch/arm/mach-versatile/pci.c
+++ b/arch/arm/mach-versatile/pci.c
@@ -21,9 +21,9 @@
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
 #include <linux/init.h>
+#include <linux/io.h>
 
 #include <mach/hardware.h>
-#include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/mach/pci.h>