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
1 file changed
tree: 7aea05f2091513f0636958eedf5e0c6ab32ccc16
  1. common/
  2. functional/
  3. scenario/