feat(hikey960): add plat-defines for SPMC_AT_EL3

To use SPMC_AT_EL3, a platform must define a few configuration
options. Copied them from fvp platform to hikey960.

Change-Id: Ifd60d69bf79f2f340fe93fe030ab8c538b3a56e4
Signed-off-by: vallau01 <valentin.laurent@trustonic.com>
Signed-off-by: Lukas Hanel <lukas.hanel@trustonic.com>
diff --git a/plat/hisilicon/hikey960/platform.mk b/plat/hisilicon/hikey960/platform.mk
index 395967b..4c3c817 100644
--- a/plat/hisilicon/hikey960/platform.mk
+++ b/plat/hisilicon/hikey960/platform.mk
@@ -165,6 +165,12 @@
 # SPM dispatcher
 ifeq (${SPD},spmd)
 ifeq (${SPMC_AT_EL3},1)
+# include device tree helper library
+include lib/libfdt/libfdt.mk
+BL31_SOURCES		+=	common/fdt_wrappers.c		\
+				${LIBFDT_SRCS}			\
+				common/uuid.c
+
 # Add support for platform supplied linker script for BL31 build
 $(eval $(call add_define,PLAT_EXTRA_LD_SCRIPT))
 endif