message: PR Add "AddV2" to tensorflow v1 flops calculation
  Imported from GitHub PR
  Copybara import of the project:
  by tigertang
  Add "AddV2" to tensorflow v1 flops calculation
  by tigertang
  Add another space line
diff: @@ -25,53 +25,21 @@ from tensorflow.python.framework import ops
  # List of all ops which have implemented flops statistics.
  IMPLEMENTED_OPS = set([
  # Unary ops
  - "Reciprocal",
  - "Square",
  - "Rsqrt",
  - "Log",
  - "Neg",
  - "AssignSub",
  - "AssignAdd",
  - "L2Loss",
  - "Softmax",
  + "Reciprocal", "Square", "Rsqrt", "Log", "Neg", "AssignSub", "AssignAdd",
  + "L2Loss", "Softmax",
  # Binary ops
  - "Add",
  - "AddV2",
  - "Sub",
  - "Mul",
  - "RealDiv",
  - "Maximum",
  - "Minimum",
  - "Pow",
  - "RsqrtGrad",
  - "GreaterEqual",
  - "Greater",
  - "LessEqual",
  - "Less",
  - "Equal",
  - "NotEqual",
  + "Add", "Sub", "Mul", "RealDiv", "Maximum", "Minimum", "Pow", "RsqrtGrad",
  + "GreaterEqual", "Greater", "LessEqual", "Less", "Equal", "NotEqual",
  "SquaredDifference",
  # Reduction ops
  - "Mean",
  - "Sum",
  - "ArgMax",
  - "ArgMin",
  - "BiasAddGrad",
  + "Mean", "Sum", "ArgMax", "ArgMin", "BiasAddGrad",
  # Convolution and pooling
  - "AvgPool",
  - "MaxPool",
  - "AvgPoolGrad",
  - "MaxPoolGrad",
  - "Conv2DBackpropInput",
  + "AvgPool", "MaxPool", "AvgPoolGrad", "MaxPoolGrad", "Conv2DBackpropInput",
  "Conv2DBackpropFilter",
  # Other ops
  "AddN",
  # Ops implemented in core tensorflow:
  - "MatMul",
  - "Conv2D",
  - "DepthwiseConv2dNative",
  - "BiasAdd",
  - "Dilation2D",
  + "MatMul", "Conv2D", "DepthwiseConv2dNative", "BiasAdd", "Dilation2D",
  ])
  @@ -177,7 +145,6 @@ def _binary_per_element_op_flops(graph, node, ops_per_element=1):
  @ops.RegisterStatistics("Add", "flops")
  -@ops.RegisterStatistics("AddV2", "flops")
  def _add_flops(graph, node):
  """Compute flops for Add operation."""
  return _binary_per_element_op_flops(graph, node)
  