Add bl2 setup code common across Broadcom platforms

Signed-off-by: Sheetal Tigadoli <sheetal.tigadoli@broadcom.com>
Change-Id: Iabeaee35c22608c93945c8295bf70947b0f6049a
diff --git a/plat/brcm/board/stingray/bcm958742t-ns3.mk b/plat/brcm/board/stingray/bcm958742t-ns3.mk
new file mode 100644
index 0000000..f6df3b7
--- /dev/null
+++ b/plat/brcm/board/stingray/bcm958742t-ns3.mk
@@ -0,0 +1,16 @@
+#
+# Copyright (c) 2015 - 2020, Broadcom
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+#######################################################
+# Board config file for bcm958742t-ns3 Stingray SST100-NS3
+#######################################################
+
+include plat/brcm/board/stingray/bcm958742t.mk
+
+# Load BL33 at 0xFF00_0000 address
+ifneq (${BL33_OVERRIDE_LOAD_ADDR},)
+$(eval $(call add_define_val,BL33_OVERRIDE_LOAD_ADDR,0xFF000000))
+endif