Enable TRUSTED_BOARD_BOOT support for LOAD_IMAGE_V2=1

This patch enables TRUSTED_BOARD_BOOT (Authentication and FWU)
support, for AArch64, when LOAD_IMAGE_V2 is enabled.

This patch also enables LOAD_IMAGE_V2 for ARM platforms.

Change-Id: I294a2eebce7a30b6784c80c9d4ac7752808ee3ad
Signed-off-by: Yatharth Kochar <yatharth.kochar@arm.com>
diff --git a/include/plat/arm/css/common/css_def.h b/include/plat/arm/css/common/css_def.h
index 173de1b..a2fe0d5 100644
--- a/include/plat/arm/css/common/css_def.h
+++ b/include/plat/arm/css/common/css_def.h
@@ -135,8 +135,10 @@
  * SCP, it is discarded and BL31 is loaded over the top.
  */
 #define SCP_BL2_BASE			BL31_BASE
+#define SCP_BL2_LIMIT			(SCP_BL2_BASE + PLAT_CSS_MAX_SCP_BL2_SIZE)
 
 #define SCP_BL2U_BASE			BL31_BASE
+#define SCP_BL2U_LIMIT			(SCP_BL2U_BASE + PLAT_CSS_MAX_SCP_BL2U_SIZE)
 #endif /* CSS_LOAD_SCP_IMAGES */
 
 /* Load address of Non-Secure Image for CSS platform ports */