Make javelin2's ping for longer
Make javelin2's ping for longer

Since as far as I can tell ping doesn't have a good way to ping until it
gets a response or until x seconds pass, use a python loop to do it
instead.

Change-Id: If05c373f30f515af82fecf2347d7f7c1a5824287

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