message: Add fused RNN/LSTM ops as legal ops in lower tensor list pass.
diff: @@ -862,6 +862,11 @@ LogicalResult LowerStaticTensorListPass::RewriteFunction(
  target.addLegalOp<ConstantOp>();
  target.addLegalOp<FuncOp>();
  target.addLegalOp<ReturnOp>();
  + // Register fused LSTM/RNN ops as legal.
  + target.addLegalOp<TFL::LSTMOp>();
  + target.addLegalOp<TFL::UnidirectionalSequenceLSTMOp>();
  + target.addLegalOp<TFL::UnidirectionalSequenceRNNOp>();
  + target.addLegalOp<TFL::BidirectionalSequenceLSTMOp>();
  OwningRewritePatternList patterns;
  populateWithGenerated(context, &patterns);
  