docs(tutorial): update step_11.ngdoc

Change toEqual to toEqualData in the test 'should create "phones" model with 2 phones fetched from xhr'
to make test more consistent.

Closes #7182

Author: tjunghans

docs/content/tutorial/step_11.ngdoc

@@ -205,7 +205,7 @@ describe('PhoneCat controllers', function() {
 
 
     it('should create "phones" model with 2 phones fetched from xhr', function() {
-      expect(scope.phones).toEqual([]);
+      expect(scope.phones).toEqualData([]);
       $httpBackend.flush();
 
       expect(scope.phones).toEqualData(