[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-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index f51d69b..af1081a 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -15,8 +15,8 @@
 #include <linux/clk.h>
 #include <linux/ioport.h>
 #include <linux/spinlock.h>
+#include <linux/io.h>
 
-#include <asm/io.h>
 #include <asm/mach-types.h>
 #include <mach/gpmc.h>