feat(versal): add support for SMCC ARCH SOC ID

Add support for SMCCC_ARCH_SOC_ID as per SMC Calling Convention for
Versal platform.
The SMCC ARCH SOC ID call is used by system software to obtain the SiP
defined SoC identification details.

Change-Id: I1466a9ad1bc8dde1cda516ddd3edbaa6a5941237
Signed-off-by: Akshay Belsare <akshay.belsare@amd.com>
diff --git a/plat/xilinx/versal/platform.mk b/plat/xilinx/versal/platform.mk
index 67ee7bf..0b6aea0 100644
--- a/plat/xilinx/versal/platform.mk
+++ b/plat/xilinx/versal/platform.mk
@@ -85,6 +85,7 @@
 				plat/xilinx/common/pm_service/pm_ipi.c		\
 				plat/xilinx/common/pm_service/pm_api_sys.c	\
 				plat/xilinx/common/pm_service/pm_svc_main.c	\
+				plat/xilinx/common/versal.c			\
 				plat/xilinx/versal/bl31_versal_setup.c		\
 				plat/xilinx/versal/plat_psci.c			\
 				plat/xilinx/versal/plat_versal.c		\