update code to disable worload mcp (#51384)

* update code to disable worload mcp

* Update ci-operator/step-registry/openshift-qe/workers-infra-workload/openshift-qe-workers-infra-workload-ref.yaml

Co-authored-by: Qiujie Li <81630527+qiliRedHat@users.noreply.github.com>

* Update ci-operator/step-registry/openshift-qe/workers-infra-workload/openshift-qe-workers-infra-workload-commands.sh

Co-authored-by: Qiujie Li <81630527+qiliRedHat@users.noreply.github.com>

---------

Co-authored-by: Qiujie Li <81630527+qiliRedHat@users.noreply.github.com>

ci-operator/step-registry/openshift-qe/workers-infra-workload/openshift-qe-workers-infra-workload-commands.sh

@@ -708,8 +708,10 @@ esac
 
 #Create infra and workload machineconfigpool
 create_machineconfigpool infra
-create_machineconfigpool workload
 
+if [[ $IF_CREATE_WORKLOAD_NODE == "true" ]];then
+  create_machineconfigpool workload
+fi
 #Set default value to none if no specified value, using cpu and ram of worker nodes to create machineset
 #This also used for some property don't exist in a certain cloud provider, but need to pass correct parameter for create_machineset
 OPENSHIFT_INFRA_NODE_INSTANCE_TYPE=${OPENSHIFT_INFRA_NODE_INSTANCE_TYPE:-none}

ci-operator/step-registry/openshift-qe/workers-infra-workload/openshift-qe-workers-infra-workload-ref.yaml

@@ -45,7 +45,7 @@ ref:
   - name: IF_CREATE_WORKLOAD_NODE
     default: "false"
     documentation: |-
-      Default is true, which means openshift-qe-workers-infra-workload-commands.sh will create workload node. You can set it to false to disable creating workload node
+      Default is false, set it to true to let openshift-qe-workers-infra-workload-commands.sh to create workload node. set it to false to disable creating workload node
   - name: OPENSHIFT_INFRA_NODE_CPU_COUNT
     default: ""
     documentation: |-