imx: reorganize IMX code as other SOCs

Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/<SOC>.

This change is also coherent with the structure in kernel.

Signed-off-by: Stefano Babic <sbabic@denx.de>

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Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
diff --git a/arch/arm/include/asm/arch-mx7/imx-regs.h b/arch/arm/include/asm/arch-mx7/imx-regs.h
index d33be31..aab3a9a 100644
--- a/arch/arm/include/asm/arch-mx7/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx7/imx-regs.h
@@ -224,7 +224,7 @@
 					 CONFIG_SYS_FSL_JR0_OFFSET)
 #define CONFIG_SYS_FSL_MAX_NUM_OF_SEC   1
 #if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__))
-#include <asm/imx-common/regs-lcdif.h>
+#include <asm/mach-imx/regs-lcdif.h>
 #include <asm/types.h>
 
 extern void imx_get_mac_from_fuse(int dev_id, unsigned char *mac);