[ostf] Can not reach run_ssh_cmd_with_exit_code method

[Kyrylo Romanenko]

OSTF Test failed "Check that Ironic services are running"
with error
fuel_health.common.test_mixins: DEBUG: Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/fuel_health/common/test_mixins.py", line 177, in verify
    result = func(*args, **kwargs)
  File "/usr/lib/python2.6/site-packages/fuel_health/ironicmanager.py", line 85, in check_service_availability
    if not fuel_health.test.call_until_true(check_services, 30, timeout):
  File "/usr/lib/python2.6/site-packages/fuel_health/test.py", line 63, in call_until_true
    elif func():
  File "/usr/lib/python2.6/site-packages/fuel_health/ironicmanager.py", line 79, in check_services
    output = self.run_ssh_cmd_with_exit_code(node, cmd)
AttributeError: 'IronicSmokeTests' object has no attribute 'run_ssh_cmd_with_exit_code'

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  openstack_version: "2015.1.0-8.0"
  api: "1.0"
  build_number: "243"
  build_id: "243"
  fuel-nailgun_sha: "1b6ae6c7fd4766f4a57d90afc1cd0f2315255a42"
  python-fuelclient_sha: "91474bd8c526f4f536ab13368feb4a5c1b84d185"
  fuel-agent_sha: "660c6514caa8f5fcd482f1cc4008a6028243e009"
  fuel-nailgun-agent_sha: "a33a58d378c117c0f509b0e7badc6f0910364154"
  astute_sha: "b60624ee2c5f1d6d805619b6c27965a973508da1"
  fuel-library_sha: "22ed1ebd7804457a02b51b57c7019d853c528611"
  fuel-ostf_sha: "a98973482f839554d90cc1c071d625a01e018cfe"
  fuel-mirror_sha: "5a1efffd411611b87cbd45af59b9733b7e170cd4"
  fuelmenu_sha: "fcb15df4fd1a790b17dd78cf675c11c279040941"
  shotgun_sha: "25a0cc461a9fa4f7684f04cef0ff4ad9aa99a64d"
  network-checker_sha: "a3534f8885246afb15609c54f91d3b23d599a5b1"
  fuel-upgrade_sha: "1e894e26d4e1423a9b0d66abd6a79505f4175ff6"
  fuelmain_sha: "ff6eec402830ea8aa9898249b5eeb928576962ff"