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/mach-mx31moboard.c b/arch/arm/mach-imx/mach-mx31moboard.c
index 6c2e058..955275b 100644
--- a/arch/arm/mach-imx/mach-mx31moboard.c
+++ b/arch/arm/mach-imx/mach-mx31moboard.c
@@ -42,12 +42,12 @@
 #include <asm/mach/time.h>
 #include <asm/mach/map.h>
 #include <asm/memblock.h>
-#include <mach/common.h>
 #include <mach/hardware.h>
 #include <mach/ulpi.h>
 #include <linux/platform_data/asoc-imx-ssi.h>
 
 #include "board-mx31moboard.h"
+#include "common.h"
 #include "devices-imx31.h"
 #include "iomux-mx3.h"