Description of problem:
Performance CPU load balancing disabling test is failing when running cnf-tests in discovery mode.

Version-Release number of selected component (if applicable):
4.8.0-0.nightly-2021-04-03-092337
CNF tests image: registry-proxy.engineering.redhat.com/rh-osbs/openshift4-cnf-tests:v4.8.0-19

How reproducible:
Run containerised tests in discovery mode against existing 4.8 clusters.

Steps to Reproduce:
Run containerised tests in discovery mode against existing 4.8 clusters for performance addon operator feature:

podman run -v /root/cnf_ci/cnf-internal-deploy/_cache/:/kubeconfig:Z -v /tmp/artifacts/cn-ran-du:/reports:Z -e CLEAN_PERFORMANCE_PROFILE=false -e CNF_TESTS_IMAGE=openshift4-cnf-tests:v4.8.0-19 -e DPDK_TESTS_IMAGE=dpdk-base:v4.8.0-2 -e IMAGE_REGISTRY=registry-proxy.engineering.redhat.com/rh-osbs/ -e KUBECONFIG=/kubeconfig/kubeconfig -e SCTPTEST_HAS_NON_CNF_WORKERS=false -e DISCOVERY_MODE=true -e NODES_SELECTOR=node-role.kubernetes.io/worker-duprofile= -e ROLE_WORKER_CNF=worker-duprofile -e LATENCY_TEST_RUN=false -e LATENCY_TEST_RUNTIME=600 -e OSLAT_MAXIMUM_LATENCY=200 registry-proxy.engineering.redhat.com/rh-osbs/openshift4-cnf-tests:v4.8.0-19 /usr/bin/test-run.sh -ginkgo.focus 'performance|ptp|sriov|sctp|dpdk|ovn' -junit /reports/ -report /reports/

Actual results:
• Failure [607.314 seconds]
[rfe_id:27363][performance] CPU Management
/remote-source/app/vendor/github.com/openshift-kni/performance-addon-operators/functests/1_performance/cpu_management.go:38
  when pod runs with the CPU load balancing runtime class
  /remote-source/app/vendor/github.com/openshift-kni/performance-addon-operators/functests/1_performance/cpu_management.go:208
    [test_id:32646] should disable CPU load balancing for CPU's used by the pod [It]
    /remote-source/app/vendor/github.com/openshift-kni/performance-addon-operators/functests/1_performance/cpu_management.go:272

    Unexpected error:
        <*errors.errorString | 0xc0002a4c10>: {
            s: "timed out waiting for the condition",
        }
        timed out waiting for the condition
    occurred

    /remote-source/app/vendor/github.com/openshift-kni/performance-addon-operators/functests/1_performance/cpu_management.go:278

Expected results:
The test should pass.