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/imx8m/imx8mm/include/platform_def.h b/plat/imx/imx8m/imx8mm/include/platform_def.h
index 940d22b..e86938b 100644
--- a/plat/imx/imx8m/imx8mm/include/platform_def.h
+++ b/plat/imx/imx8m/imx8mm/include/platform_def.h
@@ -41,12 +41,12 @@
 #define BL2_LIMIT			U(0x940000)
 #define BL31_BASE			U(0x900000)
 #define BL31_LIMIT			U(0x920000)
-#define IMX8MM_FIP_BASE			U(0x40310000)
-#define IMX8MM_FIP_SIZE			U(0x000300000)
-#define IMX8MM_FIP_LIMIT		U(FIP_BASE + FIP_SIZE)
+#define IMX_FIP_BASE			U(0x40310000)
+#define IMX_FIP_SIZE			U(0x000300000)
+#define IMX_FIP_LIMIT			U(FIP_BASE + FIP_SIZE)
 
 /* Define FIP image location on eMMC */
-#define IMX8MM_FIP_MMC_BASE		U(0x100000)
+#define IMX_FIP_MMC_BASE		U(0x100000)
 
 #define PLAT_IMX8MM_BOOT_MMC_BASE	U(0x30B50000) /* SD */
 #else