Add bug skip for test_container_synchronization()
Add bug skip for test_container_synchronization()

This commit adds a skip to test_container_synchronization(). This test
currently only gets run during the periodic -all job because of it's
slow tag. It is currently failing 100% of the time and has been in this
state for quite some time. So let's skip it until the underlying bug is
fixed.

Related-Bug: #1317133

Change-Id: Iff71b74a377cf80be21516c546031e784a61f836

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