hikey: configure the top 16MB of DRAM as secure

DRAM region 0x3f000000 - 0x3fffffff is reserved for OP-TEE and should
therefore be accessible only from secure world.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Victor Chong <victor.chong@linaro.org>
diff --git a/plat/hisilicon/hikey/platform.mk b/plat/hisilicon/hikey/platform.mk
index 8da3998..b7fb6dd 100644
--- a/plat/hisilicon/hikey/platform.mk
+++ b/plat/hisilicon/hikey/platform.mk
@@ -65,6 +65,7 @@
 				drivers/synopsys/emmc/dw_mmc.c		\
 				plat/hisilicon/hikey/aarch64/hikey_helpers.S \
 				plat/hisilicon/hikey/hikey_bl2_setup.c	\
+				plat/hisilicon/hikey/hikey_security.c   \
 				plat/hisilicon/hikey/hikey_ddr.c	\
 				plat/hisilicon/hikey/hikey_io_storage.c	\
 				plat/hisilicon/hikey/hisi_dvfs.c	\