fvp_r: load, auth, and transfer from BL1 to BL33

Adding load, authentication, and transfer functionality from FVP R BL1 to
BL33, which will be the partner runtime code.

Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Change-Id: I293cad09739dacac0d20dd57c1d98178dbe84d40
diff --git a/plat/arm/common/arm_bl1_setup.c b/plat/arm/common/arm_bl1_setup.c
index dd8f13b..872de3e 100644
--- a/plat/arm/common/arm_bl1_setup.c
+++ b/plat/arm/common/arm_bl1_setup.c
@@ -27,6 +27,7 @@
 #pragma weak bl1_plat_get_next_image_id
 #pragma weak plat_arm_bl1_fwu_needed
 #pragma weak arm_bl1_plat_arch_setup
+#pragma weak arm_bl1_platform_setup
 
 #define MAP_BL1_TOTAL		MAP_REGION_FLAT(			\
 					bl1_tzram_layout.total_base,	\