Update MCO entrypoint for upgrade

roles/openshift_node/tasks/apply_machine_config.yml

@@ -60,7 +60,7 @@
 - name: Apply machine config
   command: "podman run {{ podman_mounts }} {{ podman_flags }} {{ mcd_command }}"
   vars:
-    podman_flags: "--privileged --rm -ti {{ l_mcd_image }}"
+    podman_flags: "--privileged --rm --entrypoint=/usr/bin/machine-config-daemon -ti {{ l_mcd_image }}"
     podman_mounts: "-v /:/rootfs -v /var/run/dbus:/var/run/dbus -v /run/systemd:/run/systemd"
     mcd_command: "start --node-name {{ ansible_hostname }} --once-from {{ temp_dir.path }}/worker_ignition_config.json --skip-reboot"