Fix error when senlin do health check a cluster

When cluster doing resize/scale create nodes, and physcical id of this nodes
not found. And cluster was attached a policy health check will do health check cluster.
So on, cluster being recover that nodes and emit error log on senlin-engine.log

Change-Id: Icece85bd60faa8b9f2fd18bfe953ebeed91f0091

senlin/profiles/os/nova/server.py

@@ -1556,6 +1556,9 @@ class ServerProfile(base.Profile):
                                    consts.VS_DELETED]
 
         if not obj.physical_id:
+            if obj.status == 'BUILD' or obj.status == 'CREATING':
+                return True
+
             LOG.info('%s for %s: server has no physical ID.',
                      consts.POLL_STATUS_FAIL, obj.name)
             return False