Merge "Minor cleanup to DvrConfig processing in vrflinger"

  // Copy from latest record in shared_config_ring_ to local copy.

  DvrConfig record;

  if (shared_config_ring_.GetNewest(&shared_config_ring_sequence_, &record)) {

    ALOGI("DvrConfig updated: sequence %u, post offset %d",

          shared_config_ring_sequence_, record.frame_post_offset_ns);

    ++shared_config_ring_sequence_;

    post_thread_config_ = record;

  }

}