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

Rename mach-imx/include/mach/iram.h to mach-imx/iram.h, and update users
to include iram.h rather than mach/iram.h.
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/iram_alloc.c

@@ -22,7 +22,8 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/genalloc.h>
-#include <mach/iram.h>
+
+#include "iram.h"
 
 static unsigned long iram_phys_base;
 static void __iomem *iram_virt_base;