Stop and disable libvirtd-tls.socket in intial clean

If the libvirtd-tls.socket service is not disabled, then the
libvirtd will fail to start with error "Cannot read certificate
'/etc/pki/libvirt/servercert.pem': No such file or directory."
if we reattempt after a failed deployment. The libvirtd
will check for the certificates if the tls socket service is
enabled and fails with the mentioned errors.

tasks/initial_clean.yml

@@ -63,6 +63,7 @@
       - ovirt-ha-agent
       - ovirt-ha-broker
       - vdsmd
+      - libvirtd-tls.socket
   - name: Restore initial libvirt default network configuration
     copy:
       remote_src: true