adding fabric xconnect si checks in siab tests

Change-Id: I4aa3c1c1c107a78eb37c13b2e14a4bad20cd2193
diff --git a/src/test/cord-api/Properties/RestApiProperties.py b/src/test/cord-api/Properties/RestApiProperties.py
index 74264b1..1046cbf 100644
--- a/src/test/cord-api/Properties/RestApiProperties.py
+++ b/src/test/cord-api/Properties/RestApiProperties.py
@@ -72,3 +72,4 @@
 ATT_SERVICE = '/xosapi/v1/att-workflow-driver/attworkflowdriverservices'
 ATT_WHITELIST = '/xosapi/v1/att-workflow-driver/attworkflowdriverwhitelistentries'
 ATT_SERVICEINSTANCES = '/xosapi/v1/att-workflow-driver/attworkflowdriverserviceinstances'
+FABRIC_CROSSCONNECT_SERVICEINSTANCES='/xosapi/v1/fabric-crossconnect/fabriccrossconnectserviceinstances'