[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/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index a1f381c..00b0ddc 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -10,9 +10,9 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/init.h>
+#include <linux/io.h>
 
 #include <asm/hardware/dec21285.h>
-#include <asm/io.h>
 #include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/setup.h>