Merge pull request #4873 from openshift-cherrypick-robot/cherry-pick-4845-to-release-4.19

[release-4.19] OCPBUGS-55833: Disable istiod autoscaler

Author: openshift-merge-bot[bot]

assets/optional/gateway-api/02-istio.yaml

@@ -7,6 +7,7 @@ spec:
   namespace: openshift-gateway-api
   values:
     pilot:
+      autoscaleEnabled: false
       resources:
         requests:
           cpu: 50m