Description of problem:

The oc adm upgrade status command does not work on HyperShift in its current form that relies on MCP presence and ignores NodePools and management/hosted cluster separation. However, the tool fails in an ugly way instead of a nice one.

Version-Release number of selected component (if applicable):

4.20 before branch cut

How reproducible:

Always

Steps to Reproduce:

1. Run oc adm upgrade status against a HyperShift cluster

Actual results:

Error from server (NotFound): deployments.apps "machine-config-operator" not found

Expected results:

Not supported on HCP clusters.

Additional info:

CI job that shows the failing test:

https://prow.ci.openshift.org/view/gs/test-platform-results/pr-logs/pull/openshift_api/2418/pull-ci-openshift-api-master-e2e-aws-ovn-hypershift-conformance/1957536650003222528