[JIRA] (OVIRT-2439) ensure centos-release-qemu-ev is intalled on CI slaves

ensure centos-release-qemu-ev is intalled on CI slaves ------------------------------------------------------ Key: OVIRT-2439 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-2439 Project: oVirt - virtualization made easy Issue Type: Task Reporter: Evgheni Dereveanchin Assignee: Evgheni Dereveanchin qemu-kvm-ev and friends come from the CentOS Virt SIG repo that is signed yet to check the signature a pubkey is required. We need to have centos-release-qemu-ev installed to provide it.