Fix function name in test (#1250)

* Fix function name in test

Error was somehow introduced in last 2 PRs merged.

* Update volumes_test.go

pkg/cluster/volumes_test.go

@@ -163,7 +163,7 @@ func CreatePVCs(namespace string, clusterName string, labels labels.Set, n int,
 }
 
 func TestMigrateEBS(t *testing.T) {
-	client, _ := NewFakeKubernetesClient()
+	client, _ := newFakeK8sPVCclient()
 	clusterName := "acid-test-cluster"
 	namespace := "default"