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>

arch/arm/mach-imx/mach-imx27_visstrim_m10.c

@@ -40,9 +40,9 @@
 #include <asm/mach/time.h>
 #include <asm/system_info.h>
 #include <asm/memblock.h>
-#include <mach/common.h>
 #include <mach/hardware.h>
 
+#include "common.h"
 #include "devices-imx27.h"
 #include "iomux-mx27.h"