[SEBA-494] Setting required core version

Change-Id: I5b572cb16acd0b8d7d92fcbe32469e949c27f7dd
diff --git a/xos/synchronizer/config.yaml b/xos/synchronizer/config.yaml
index a7d7bd6..a9e7c26 100644
--- a/xos/synchronizer/config.yaml
+++ b/xos/synchronizer/config.yaml
@@ -15,6 +15,7 @@
 
 
 name: onos
+core_version: ">=2.2.1"
 required_models:
   - ONOSService
   - ONOSApp