[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-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c
index c261472..6a5b437 100644
--- a/arch/arm/mach-footbridge/cats-hw.c
+++ b/arch/arm/mach-footbridge/cats-hw.c
@@ -9,9 +9,9 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/screen_info.h>
+#include <linux/io.h>
 
 #include <asm/hardware/dec21285.h>
-#include <asm/io.h>
 #include <asm/mach-types.h>
 #include <asm/setup.h>