message: Update mem usage number
  Summary: Increase due to
  Test Plan: All tests pass
  Reviewers: davidn, jakeh
diff: @@ -137,7 +137,7 @@ class Resnet18_No_Batchnorm(test_util.TensorFlowTestCase):
  evts = utils.extract_all_events(out)
  size = utils.get_memory_size_from_events(evts)
  - self.assertTrue(size < 221000000)
  + self.assertTrue(size < 227000000)
  def testTraining(self):
  x = array_ops.placeholder(datatype, shape=[1, 224, 224, 4])
  