MLK-10186-1 imximage: add fixed IVT offset support

Since from mx7, we use fixed IVT offset for all boot devices.
Introduce a new configuration CONFIG_IMX_FIXED_IVT_OFFSET for this.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
(cherry picked from commit 88e0a3552b08627b18d98380a32dbafacb18854b)

Conflicts:
	tools/imximage.h

include/imximage.h

@@ -29,10 +29,18 @@
 #define FLASH_OFFSET_NAND	FLASH_OFFSET_STANDARD
 #define FLASH_OFFSET_SD		FLASH_OFFSET_STANDARD
 #define FLASH_OFFSET_SPI	FLASH_OFFSET_STANDARD
+#define FLASH_OFFSET_SATA	FLASH_OFFSET_STANDARD
+
+#ifdef CONFIG_IMX_FIXED_IVT_OFFSET
+#define FLASH_OFFSET_ONENAND	FLASH_OFFSET_STANDARD
+#define FLASH_OFFSET_NOR	FLASH_OFFSET_STANDARD
+#define FLASH_OFFSET_QSPI	FLASH_OFFSET_STANDARD
+#else
 #define FLASH_OFFSET_ONENAND	0x100
 #define FLASH_OFFSET_NOR	0x1000
 #define FLASH_OFFSET_SATA	FLASH_OFFSET_STANDARD
 #define FLASH_OFFSET_QSPI	0x1000
+#endif
 
 /* Initial Load Region Size */
 #define FLASH_LOADSIZE_UNDEFINED	0xFFFFFFFF