ARM: imx: include common.h rather than mach/common.h

Rename mach-imx/include/mach/common.h to mach-imx/common.h and update
all users to include common.h rather than mach/common.h.

It also removes an unneeded inclusion to common.h in
mach-imx/devices/devices.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/mach-imx/mm-imx1.c b/arch/arm/mach-imx/mm-imx1.c
index af61242..118aa92 100644
--- a/arch/arm/mach-imx/mm-imx1.c
+++ b/arch/arm/mach-imx/mm-imx1.c
@@ -22,9 +22,9 @@
 
 #include <asm/mach/map.h>
 
-#include <mach/common.h>
 #include <mach/hardware.h>
 
+#include "common.h"
 #include "iomux-v1.h"
 
 static struct map_desc imx_io_desc[] __initdata = {