Arm platforms: Rename PLAT_ARM_NS_IMAGE_OFFSET

PLAT_ARM_NS_IMAGE_OFFSET is in fact not an offset relative to some base
address, it is an absolute address. Rename it to avoid any confusion.

Change-Id: I1f7f5e8553cb267786afe7e5f3cd4d665b610d3f
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/include/plat/arm/css/common/css_def.h b/include/plat/arm/css/common/css_def.h
index 575db04..ec28db0 100644
--- a/include/plat/arm/css/common/css_def.h
+++ b/include/plat/arm/css/common/css_def.h
@@ -183,7 +183,7 @@
 #endif /* CSS_LOAD_SCP_IMAGES */
 
 /* Load address of Non-Secure Image for CSS platform ports */
-#define PLAT_ARM_NS_IMAGE_OFFSET	U(0xE0000000)
+#define PLAT_ARM_NS_IMAGE_BASE		U(0xE0000000)
 
 /* TZC related constants */
 #define PLAT_ARM_TZC_FILTERS		TZC_400_REGION_ATTR_FILTER_BIT_ALL