Fix the invocation of novaclient object using named parameters
Fix the invocation of novaclient object using named parameters

Change-Id: I04a21c5c6c9d826122e28af84fbe01d970261b2a
Closes-Bug: #1658771

stackforge/tacker,stackforge/tacker,zeinsteinz/tacker,openstack/tacker,openstack/tacker,openstack/tacker,zeinsteinz/tacker