message: Updated TF to use new cycleCount API
  Summary: Ref T37282
  Reviewers: jakeh, georgep, #tensorflow, simonl, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved
  Maniphest Tasks: T37282
diff: @@ -537,7 +537,8 @@ bool InitializeCycleCounter(poplar::Graph& graph,
  } else {
  std::string cycleCounterId = PoplarExecutor::GetCycleCounterStream();
  poplar::Tensor cycleCounter =
  - poplar::cycleCount(graph, seq, tile, {debug_info, cycleCounterId});
  + poplar::cycleCount(graph, seq, tile, poplar::SyncType::INTERNAL,
  + {debug_info, cycleCounterId});
  poplar::DataStream fifo = graph.addDeviceToHostFIFO(
  cycleCounterId, cycleCounter.elementType(), cycleCounter.numElements());
  seq.add(poplar::program::Copy(cycleCounter, fifo, false, {debug_info}));
  