Hosted ovnkubernetes pods are not being spread among workers evenly

This is a clone of issue OCPBUGS-3883. The following is the description of the original issue:
—
While doing a PerfScale test of we noticed that the ovnkube pods are not being spread out evenly among the available workers. Instead they are all stacking on a few until they fill up the available allocatable ebs volumes (25 in the case of m5 instances that we see here).

An example from partway through our 80 hosted cluster test when there were ~30 hosted clusters created/in progress

There are 24 workers available:

```

$ for i in `oc get nodes l node-role.kubernetes.io/worker=,node-role.kubernetes.io/infra!=,node-role.kubernetes.io/workload!= | egrep -v "NAME" | awk '{ print $1 }'`;    do  echo $i `oc describe node $i | grep -v openshift | grep ovnkube -c`; done
ip-10-0-129-227.us-west-2.compute.internal 0
ip-10-0-136-22.us-west-2.compute.internal 25
ip-10-0-136-29.us-west-2.compute.internal 0
ip-10-0-147-248.us-west-2.compute.internal 0
ip-10-0-150-147.us-west-2.compute.internal 0
ip-10-0-154-207.us-west-2.compute.internal 0
ip-10-0-156-0.us-west-2.compute.internal 0
ip-10-0-157-1.us-west-2.compute.internal 4
ip-10-0-160-253.us-west-2.compute.internal 0
ip-10-0-161-30.us-west-2.compute.internal 0
ip-10-0-164-98.us-west-2.compute.internal 0
ip-10-0-168-245.us-west-2.compute.internal 0
ip-10-0-170-103.us-west-2.compute.internal 0
ip-10-0-188-169.us-west-2.compute.internal 25
ip-10-0-188-194.us-west-2.compute.internal 0
ip-10-0-191-51.us-west-2.compute.internal 5
ip-10-0-192-10.us-west-2.compute.internal 0
ip-10-0-193-200.us-west-2.compute.internal 0
ip-10-0-193-27.us-west-2.compute.internal 7
ip-10-0-199-1.us-west-2.compute.internal 0
ip-10-0-203-161.us-west-2.compute.internal 0
ip-10-0-204-40.us-west-2.compute.internal 23
ip-10-0-220-164.us-west-2.compute.internal 0
ip-10-0-222-59.us-west-2.compute.internal 0

```

This is running quay.io/openshift-release-dev/ocp-release:4.11.11-x86_64 for the hosted clusters and the hypershift operator is quay.io/hypershift/hypershift-operator:4.11 on a 4.11.9 management cluster