Update VERSION and XOS parent container

Fix model to use integers in choice list

Change-Id: Ia24ab3005d14c7cf2eeefda79a2579c7f933fc13
diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index 611bcf6..d162e15 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # xosproject/mcord-synchronizer
-FROM xosproject/xos-synchronizer-base:2.0.0
+FROM xosproject/xos-synchronizer-base:2.1.9
 
 COPY xos/synchronizer /opt/xos/synchronizers/mcord
 COPY VERSION /opt/xos/synchronizers/mcord/