Skip test that is failing due to nova bug 940500.
Skip test that is failing due to nova bug 940500.

Change-Id: I3c3b78431c44d3cc40cbb9d019c496e0fcfbd081

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