Add wait_sec for test_stack_update_from_failed

Similar to some other failures where the updated_time does not
change, _verify_status ignores it and the test times out.

Change-Id: Ifdf8c1e5e129fdd6c3592ffaca307e43c1317f70
Related-Bug: #1583630
diff --git a/functional/test_create_update.py b/functional/test_create_update.py
index aa4bdbf..446c9a3 100644
--- a/functional/test_create_update.py
+++ b/functional/test_create_update.py
@@ -26,7 +26,7 @@
                 'value': 'Test1',
                 'fail': False,
                 'update_replace': False,
-                'wait_secs': 0,
+                'wait_secs': 1,
                 'action_wait_secs': {'create': 1},
                 'client_name': 'nova',
                 'entity_name': 'servers',