Fix up test_lib to look for kvm and qemu-kvm
Fix up test_lib to look for kvm and qemu-kvm

crowbar/crowbar,nkrinner/crowbar,MaximilianMeister/crowbar,dirkmueller/crowbar,rhafer/crowbar,SUSE-Cloud/crowbar,tserong/crowbar,mmnelemane/crowbar,tserong/crowbar,SUSE-Cloud/crowbar,mmnelemane/crowbar,rsalevsky/crowbar,toabctl/crowbar,aplanas/crowbar,rhafer/crowbar,nkrinner/crowbar,MaximilianMeister/crowbar,vwallfahrer/crowbar,crowbar/crowbar,aspiers/crowbar,vwallfahrer/crowbar,dirkmueller/crowbar,rsalevsky/crowbar,aplanas/crowbar,toabctl/crowbar,rhafer/crowbar,aspiers/crowbar