SEBA-405 Update openstack synchronizer to use synchronizer library

Change-Id: I9adae42fa7eec94ee496b728c32a7ce5db3c39e0
diff --git a/xos/synchronizer/steps/sync_principal.py b/xos/synchronizer/steps/sync_principal.py
index 9b401a9..b78923d 100644
--- a/xos/synchronizer/steps/sync_principal.py
+++ b/xos/synchronizer/steps/sync_principal.py
@@ -14,7 +14,7 @@
 # limitations under the License.
 
 
-from synchronizers.new_base.modelaccessor import TrustDomain, Principal
+from xossynchronizer.modelaccessor import TrustDomain, Principal
 from newopenstacksyncstep import NewOpenStackSyncStep
 
 from xosconfig import Config