Add systest for check readiness env

Scenario:
  1. Create cluster
  2. Add 3 nodes with controller and ceph role
  3. Add 3 nodes with compute and ceph roles
  4. Add 3 nodes with mongo roles
  5. Deploy the cluster
  6. Verify smiles count
  7. Run OSTF

Change-Id: I1d1ac09bd847a4578359b6e8ec895653def595fb
Closes-bug: #1391812
Merge "Add systest for check readiness env"