message: Legalize tflite CustomOp
diff: @@ -859,6 +859,7 @@ LogicalResult LowerStaticTensorListPass::RewriteFunction(
  target.addLegalOp<ConstantOp>();
  target.addLegalOp<FuncOp>();
  target.addLegalOp<ReturnOp>();
  + target.addLegalOp<TFL::CustomOp>();
  // Register fused LSTM/RNN ops as legal.
  target.addLegalOp<TFL::LSTMOp>();
  target.addLegalOp<TFL::UnidirectionalSequenceLSTMOp>();
  