Update from OpenShift Container Platform 4.10 to 4.11 stuck because kubelet on Node won't start because of feature gate CSIMigrationOpenStack is set to false

Issue

• Node stuck in NotReady, SchedulingDisabled due to the below log:

  Nov 09 12:22:15 node.example.com hyperkube[1168976]: Error: failed to set feature gates from initial flags-based config: cannot set feature gate CSIMigrationOpenStack to false, feature is locked to true
  

• Updating one cluster from 4.10.39 to 4.11.13 failed. While updating the first master node, something seemingly went wrong as the master node never reconnected to the cluster. When checking we found the below messages for kubelet.service

  Nov 22 07:36:22 master-01 hyperkube[15639]: Error: failed to set feature gates from initial flags-based config: cannot set feature gate CSIMigrationOpenStack to false, feature is locked to true