CORD-2062 treat error 409 as success when installing onos apps

Change-Id: I91fd80f7e2020bb4b4cb604407e922254303cbcb
diff --git a/xos/synchronizer/steps/sync_onosapp_nocontainer.yaml b/xos/synchronizer/steps/sync_onosapp_nocontainer.yaml
index e61fe53..eaa687c 100644
--- a/xos/synchronizer/steps/sync_onosapp_nocontainer.yaml
+++ b/xos/synchronizer/steps/sync_onosapp_nocontainer.yaml
@@ -47,6 +47,7 @@
         password: rocks
         body_format: json
         method: POST
+        status_code: 200, 409
     with_items:
        {% for install_dependency in install_dependencies %}
        - endpoint: "onos/v1/applications"