[NaCl SDK] Run nacl_io_socket_test on the bots.

native_client_sdk/src/tests/sdk_util_test/test.js

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 function addTests() {
-  common.tester.addAsyncTest('nacl_io_test', function (test) {
+  common.tester.addAsyncTest('sdk_util_test', function (test) {
     var intervalId = window.setInterval(function () {
       if (!testsFinished)
         return;
 
       window.clearInterval(intervalId);
       if (failedTests > 0)
         test.fail('tests failed');
       else
         test.pass();
     }, 100);
   });
 }