[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/memory.c b/arch/arm/mach-omap2/memory.c
index 6b49cc9..ab1462b 100644
--- a/arch/arm/mach-omap2/memory.c
+++ b/arch/arm/mach-omap2/memory.c
@@ -21,8 +21,7 @@
 #include <linux/errno.h>
 #include <linux/delay.h>
 #include <linux/clk.h>
-
-#include <asm/io.h>
+#include <linux/io.h>
 
 #include <mach/common.h>
 #include <mach/clock.h>