Disable libvirtd and stop it

Disable libvirtd and stop it the dnsmasq libvirtd process conflicts with the
dnsmasq process from ironic inspector and that there's no need to have
libvirtd running at all on any of the overcloud nodes.

Change-Id: Ied386c148717c53903bd5f58c575e8c6cabee7a9

deployment/tripleo-packages/tripleo-packages-baremetal-puppet.yaml

@@ -298,6 +298,22 @@ outputs:
                   - rsync
                 state: present
               when: ansible_facts['distribution_major_version'] is version('8', '==')
+        - name: check if libvirt is installed
+          command: /usr/bin/rpm -q libvirt-daemon
+          failed_when: false
+          register: libvirt_installed
+          check_mode: false
+        - name: make sure libvirt services are disabled and masked
+          service:
+            name: "{{ item }}"
+            state: stopped
+            enabled: false
+            masked: true
+            daemon_reload: true
+          loop:
+            - libvirtd.service
+            - virtlogd.socket
+          when: libvirt_installed.rc == 0
         - name: Special treatment for OpenvSwitch
           tripleo_ovs_upgrade:
           when: