message: Add depthwise ops for NAS cell in nn_ops_test to improve the inference time on
  the particular depthwise ops.
diff: @@ -653,6 +653,8 @@ BM_ConvFloatDepthwiseFwd(32, 7, 7, 1024, 1, 1024, 3, 3, 1, SAME, conv6);
  // Benchmarks with different stride and padding options.
  BM_ConvFloatDepthwiseFwd(32, 112, 112, 3, 8, 24, 3, 3, 2, SAME, conv7);
  BM_ConvFloatDepthwiseFwd(32, 112, 112, 3, 8, 24, 3, 3, 2, VALID, conv8);
  +BM_ConvFloatDepthwiseFwd(1, 100, 100, 72, 1, 72, 3, 3, 1, SAME, conv9);
  +BM_ConvFloatDepthwiseFwd(1, 100, 100, 72, 1, 72, 5, 5, 1, SAME, conv10);
  #define BM_ConvFloatDepthwiseBk(BS, R, C, ID, DM, OD, KR, KC, STR, PAD, LABEL) \
  static void BM_ConvFloatDepthwiseBkInCPU1_##LABEL(int iters) { \
  