OpenShift Baremetal IPI installtion fails with error "failed to convert nmstate data: exit status 65"

Issue

• OCP 4.14.z BM IPI with static IP installation fails with the journalctl logs on bootstrap showing ImageRefValidationFailed errors:

  ERROR ironic.drivers.modules.inspector.interface     raise exception.ImageRefValidationFailed(image_href=output_url,
  Mar 07 12:18:18 localhost.localdomain ironic[8540]: 2024-03-07 12:18:18.512 1 ERROR ironic.drivers.modules.inspector.interface ironic.common.exception.ImageRefValidationFailed: Validation of image href http://[xxxxxxx]:8084/master-1.initramfs failed, reason: HTTPConnectionPool(host='xxxxxxxx', port=8084): Max retries exceeded with url: /master-1
  

• The image-customisation.service logs show this error indicating there might be a problem in networkconfig section of install-config.yaml:

  $ journalctl -u image-customization.service -f
  Mar 07 12:16:58 localhost.localdomain image-customization[8474]: {"level":"info","ts":"2024-03-07T12:16:58Z","logger":"static-server","msg":"Go Version: go1.20.12 X:strictfipsruntime"}
  Mar 07 12:16:58 localhost.localdomain image-customization[8474]: {"level":"info","ts":"2024-03-07T12:16:58Z","logger":"static-server","msg":"Go OS/Arch: linux/amd64"}
  Mar 07 12:16:58 localhost.localdomain image-customization[8474]: {"level":"info","ts":"2024-03-07T12:16:58Z","logger":"static-server","msg":"Git commit: unknown"}
  Mar 07 12:16:58 localhost.localdomain image-customization[8474]: {"level":"info","ts":"2024-03-07T12:16:58Z","logger":"static-server","msg":"Build time: unknown"}
  Mar 07 12:16:58 localhost.localdomain image-customization[8474]: {"level":"info","ts":"2024-03-07T12:16:58Z","logger":"static-server","msg":"Component: openshift/image-customization-controller was not built with version info"}
  Mar 07 12:16:58 localhost.localdomain image-customization[8474]: {"level":"error","ts":"2024-03-07T12:16:58Z","logger":"static-server","msg":"problem loading static ignitions","error":"failed to convert nmstate data: exit status 65","errorVerbose":"exit status 65\nfailed to convert nmstate data","stacktrace":"main.main\n\t/go/src/github.com/openshift/image-customization-controller/cmd/static-server/main.go:151\nruntime.main\n\t/usr/lib/golang/src/runtime/proc.go:250"}
  Mar 07 12:16:58 localhost.localdomain systemd[1]: image-customization.service: Main process exited, code=exited, status=1/FAILURE
  Mar 07 12:16:58 localhost.localdomain image-customization[8516]: cb67bfeb2b0aa981f0b1c9e2d
  Mar 07 12:16:58 localhost.localdomain systemd[1]: image-customization.service: Failed with result 'exit-code'.
  Mar 07 12:16:58 localhost.localdomain systemd[1]: image-customization.service: Consumed 21.917s CPU time.