Adding RHV host fails with "KeyError: 'dhcp'" error

Issue

Adding RHV host to the environment fails with following errors

• engine.log

2021-07-23 12:54:50,625+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.CollectVdsNetworkDataAfterInstallationVDSCommand] (EE-ManagedThreadFactory-engine-Thread-499107) [7326cc65] Command 'CollectVdsNetworkDataAfterInstallationVDSCommand(HostName = test, CollectHostNetworkDataVdsCommandParameters:{hostId='046e9a64-f422-45b4-b070-da2f941ea28f', vds='Host[test,046e9a64-f422-45b4-b070-da2f941ea28f]'})' execution failed: VDSGenericException: VDSErrorException: Failed to CollectVdsNetworkDataAfterInstallationVDS, error = Internal JSON-RPC error: {'reason': "'dhcp'"}, code = -32603

• vdsm.log

MainProcess|jsonrpc/2::ERROR::2021-07-23 12:54:50,006::supervdsm_server::97::SuperVdsm.ServerCallback::(wrapper) Error in network_caps
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/vdsm/supervdsm_server.py", line 95, in wrapper
    res = func(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/vdsm/network/api.py", line 59, in network_caps
    return netswitch.configurator.netcaps(compatibility=30600)
  File "/usr/lib/python3.6/site-packages/vdsm/network/netswitch/configurator.py", line 504, in netcaps
    net_caps = netinfo(compatibility=compatibility)
  File "/usr/lib/python3.6/site-packages/vdsm/network/netswitch/configurator.py", line 512, in netinfo
    _netinfo = netinfo_get(vdsmnets, compatibility)
  File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 264, in get
    return _stringify_mtus(_get(vdsmnets))
  File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 75, in _get
    extra_info.update(_get_devices_info_from_nmstate(devices))
  File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 165, in _get_devices_info_from_nmstate
    nmstate.show_interfaces(filter=devices)
  File "/usr/lib/python3.6/site-packages/vdsm/network/netinfo/cache.py", line 164, in <dictcomp>
    for ifname, ifstate in six.viewitems(
  File "/usr/lib/python3.6/site-packages/vdsm/network/nmstate/api.py", line 210, in is_dhcp_enabled
    return family_info[InterfaceIP.ENABLED] and family_info[InterfaceIP.DHCP]
KeyError: 'dhcp'