OSTF tests failed with ceph+controller multoirole

[okosse]

I use standard autotest contrail_ceph_multirole.
Check deploy contrail with Controller + Ceph multirole

        Scenario:
            1. Create an environment with "Neutron with tunneling
               segmentation" as a network configuration and CEPH storage
            2. Enable and configure Contrail plugin and vSRX
            3. Add 3 nodes with "controller" + "Ceph-OSD" multirole
            4. Add 2 nodes with "compute" role
            5. Add 1 node with "contrail-config", "contrail-control" and
               "contrail-db" roles
            6. Deploy cluster with plugin
            7. Run OSTF tests

Expected results: all steps success without errors

Actual results: Failed 2 OSTF tests. Names of failed tests: [
 { "Instance live migration (failure)": "VM connectivity doesn`t function properly. Please refer to OpenStack logs for more details."},
 { "Check network connectivity from instance via floating IP (failure)": "VM connectivity doesn`t function properly. Please refer to OpenStack logs for more details."}]

I get the same result in other multirole autotests

[Illia Polliul (ipolliul)]

https://review.openstack.org/283478 - fix for this bug.