Fix order of arguments in assertEqual
Fix order of arguments in assertEqual

Some tests used incorrect order assertEqual(observed, expected).

The correct order expected by testtools is
assertEqual(expected, observed).

Change-Id: I57d7c242b2f2b63d71f7830fe355dbf857ffad58

igor-toga/local-snat,mahak/neutron,igor-toga/local-snat,sebrandon1/neutron,cloudbase/neutron,eayunstack/neutron,openstack/neutron,eayunstack/neutron,mahak/neutron,huntxu/neutron,noironetworks/neutron,sebrandon1/neutron,openstack/neutron,noironetworks/neutron,cloudbase/neutron,mahak/neutron,openstack/neutron,huntxu/neutron