stm322mp1: add BSEC service

This service, called with SMC from Non secure world, allows access to
some configurations saved in OTP fuses.

Change-Id: I92ba5614b2cb4a03260119e2cf74f2cd626a3431
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Mathieu Belou <mathieu.belou@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
diff --git a/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk b/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
index f78e43d..4188cc5 100644
--- a/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
+++ b/plat/st/stm32mp1/sp_min/sp_min-stm32mp1.mk
@@ -21,4 +21,5 @@
 BL32_SOURCES		+=	plat/common/plat_psci_common.c
 
 # stm32mp1 specific services
-BL32_SOURCES		+=	plat/st/stm32mp1/services/stm32mp1_svc_setup.c
+BL32_SOURCES		+=	plat/st/stm32mp1/services/bsec_svc.c		\
+				plat/st/stm32mp1/services/stm32mp1_svc_setup.c