AMBARI-6937. Move Wizard: infinite spinner on step2. (akovalenko)

ambari-web/app/controllers/main/service/reassign/step2_controller.js

@@ -106,7 +106,7 @@ App.ReassignMasterWizardStep2Controller = App.WizardStep5Controller.extend({
     return false;
   },
 
-  getIsSubmitDisabled: function () {
+  updateIsSubmitDisabled: function () {
     var isSubmitDisabled = this._super();
     if (!isSubmitDisabled) {
       var reassigned = 0;