Less vesbose info level logging in DistributedTopologyStore

Change-Id: I1a7fbcf8e867e95bc514fa4745f35226b99d0d3b
diff --git a/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java b/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java
index 543e372..0b26ef4 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/topology/impl/DistributedTopologyStore.java
@@ -330,7 +330,7 @@
         public void event(EventuallyConsistentMapEvent<DeviceId, Set<ConnectPoint>> event) {
             if (event.type() == EventuallyConsistentMapEvent.Type.PUT) {
                 if (!event.value().isEmpty()) {
-                    log.info("Cluster rooted at {} has {} broadcast-points; #{}",
+                    log.debug("Cluster rooted at {} has {} broadcast-points; #{}",
                              event.key(), event.value().size(), event.value().hashCode());
                 }
             }