[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/common/time-acorn.c b/arch/arm/common/time-acorn.c
index df0983a..deeed56 100644
--- a/arch/arm/common/time-acorn.c
+++ b/arch/arm/common/time-acorn.c
@@ -17,9 +17,9 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/io.h>
 
 #include <mach/hardware.h>
-#include <asm/io.h>
 #include <asm/hardware/ioc.h>
 
 #include <asm/mach/time.h>