message: Make the infeed queue buffer bigger.
  Summary: Resolves T33586
  Reviewers: #tensorflow, simonl, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, georgep
  Subscribers: davidn
  Maniphest Tasks: T33586
diff: @@ -110,7 +110,7 @@ class InfeedQueue {
  }
  private:
  - SPSCQueue<T, 32> queue_;
  + SPSCQueue<T, 2048> queue_;
  static constexpr T kEndOfQueueSentinel{nullptr};
  TF_DISALLOW_COPY_AND_ASSIGN(InfeedQueue);
  };
  