controller manager config: Set leaderElection.name

Set leaderElection.name in OpenShiftControllerManagerConfig
to contain the custom value currently in use so that the operand
deployment is backward compatible when the lease name
is no longer being set in the operand executable.

This is necessary for the upcoming operand refactoring.

Author: tchap

bindata/assets/config/openshift-controller-manager-defaultconfig.yaml

@@ -1,2 +1,4 @@
 apiVersion: openshiftcontrolplane.config.openshift.io/v1
 kind: OpenShiftControllerManagerConfig
+leaderElection:
+  name: openshift-master-controllers

pkg/operator/sync_openshiftcontrollermanager_v311_00_test.go

@@ -63,6 +63,9 @@ func TestExpectedConfigMap(t *testing.T) {
 			APIVersion: "openshiftcontrolplane.config.openshift.io/v1",
 			Kind:       "OpenShiftControllerManagerConfig",
 		},
+		LeaderElection: configv1.LeaderElection{
+			Name: "openshift-master-controllers",
+		},
 		Controllers: []string{"*",
 			"-openshift.io/build",
 			"-openshift.io/build-config-change",