PXEDracDriver could not be loaded.

Issue

After update of openstack-ironic to following packages:

1:openstack-ironic-common-4.2.3-1.el7ost.noarch
1:openstack-ironic-api-4.2.3-1.el7ost.noarch
1:openstack-ironic-conductor-4.2.3-1.el7ost.noarc

While trying to import the instackenv.json file following error is shown:

[stack@director ~]$ openstack baremetal import --json ~/instackenv.json-
Request returned failure status.
No valid host was found. Reason: No conductor service registered which supports driver pxe_ipmitool. (HTTP 400)

Also shows empty list on ironic driver-list:

[stack@director ~]$ ironic driver-list
+---------------------+----------------+
| Supported driver(s) | Active host(s) |
+---------------------+----------------+
+---------------------+----------------+