refactor(plat/imx/imx): make imx io-storage logic for TBBR/FIP common

This commit makes imx image io-storage logic common for all
imx platform.

Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>
Change-Id: I15045ac8f9dfa8cb714e32f9e7475d5eae4e86e4
diff --git a/plat/imx/imx7/warp7/include/platform_def.h b/plat/imx/imx7/warp7/include/platform_def.h
index 4afcb54..683e50d 100644
--- a/plat/imx/imx7/warp7/include/platform_def.h
+++ b/plat/imx/imx7/warp7/include/platform_def.h
@@ -94,12 +94,12 @@
 #define IMX7_UBOOT_LIMIT		(IMX7_UBOOT_BASE + IMX7_UBOOT_SIZE)
 
 /* Define FIP image absolute location 0x80000000 - 0x80100000 */
-#define IMX7_FIP_SIZE			0x00100000
-#define IMX7_FIP_BASE			(DRAM_BASE)
-#define IMX7_FIP_LIMIT			(IMX7_FIP_BASE + IMX7_FIP_SIZE)
+#define IMX_FIP_SIZE			0x00100000
+#define IMX_FIP_BASE			(DRAM_BASE)
+#define IMX_FIP_LIMIT			(IMX_FIP_BASE + IMX_FIP_SIZE)
 
 /* Define FIP image location at 1MB offset */
-#define IMX7_FIP_MMC_BASE		(1024 * 1024)
+#define IMX_FIP_MMC_BASE		(1024 * 1024)
 
 /* Define the absolute location of DTB 0x83000000 - 0x83100000 */
 #define IMX7_DTB_SIZE			0x00100000