Fix missing usage of the xml neutron clients
Fix missing usage of the xml neutron clients

This commit adds a conf check for a use of the neutron xml clients
which is outside of the network api tests. This is causing failures
when the neutron xml api is not available.

Change-Id: I51ca8c5ceb65d4ed07b17ed3c1895eeef1c54878

hayderimran7/tempest,Tesora/tesora-tempest,danielmellado/tempest,manasi24/jiocloud-tempest-qatempest,rakeshmi/tempest,alinbalutoiu/tempest,jamielennox/tempest,tudorvio/tempest,redhat-cip/tempest,Vaidyanath/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,cisco-openstack/tempest,yamt/tempest,ebagdasa/tempest,danielmellado/tempest,afaheem88/tempest_neutron,tudorvio/tempest,nunogt/tempest,NexusIS/tempest,rzarzynski/tempest,cisco-openstack/tempest,Juraci/tempest,LIS/lis-tempest,varunarya10/tempest,manasi24/tempest,hpcloud-mon/tempest,alinbalutoiu/tempest,sebrandon1/tempest,pandeyop/tempest,roopali8/tempest,Lilywei123/tempest,ebagdasa/tempest,dkalashnik/tempest,akash1808/tempest,bigswitch/tempest,Juniper/tempest,neerja28/Tempest,masayukig/tempest,redhat-cip/tempest,openstack/tempest,hayderimran7/tempest,xbezdick/tempest,roopali8/tempest,varunarya10/tempest,CiscoSystems/tempest,JioCloud/tempest,jaspreetw/tempest,masayukig/tempest,akash1808/tempest,jaspreetw/tempest,jamielennox/tempest,eggmaster/tempest,JioCloud/tempest,hpcloud-mon/tempest,NexusIS/tempest,Tesora/tesora-tempest,neerja28/Tempest,zsoltdudas/lis-tempest,nunogt/tempest,rzarzynski/tempest,manasi24/jiocloud-tempest-qatempest,sebrandon1/tempest,Juniper/tempest,manasi24/tempest,bigswitch/tempest,Vaidyanath/tempest,flyingfish007/tempest,izadorozhna/tempest,tonyli71/tempest,pczerkas/tempest,flyingfish007/tempest,dkalashnik/tempest,pandeyop/tempest,Lilywei123/tempest,vedujoshi/tempest,LIS/lis-tempest,rakeshmi/tempest,eggmaster/tempest,yamt/tempest,afaheem88/tempest,Juraci/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,vedujoshi/tempest,afaheem88/tempest_neutron,zsoltdudas/lis-tempest,CiscoSystems/tempest,openstack/tempest,izadorozhna/tempest,tonyli71/tempest,pczerkas/tempest,xbezdick/tempest,afaheem88/tempest