Update C++ torch::nn parity table (#28419)
Summary:
This PR updates `test/cpp_api_parity/parity-tracker.md` to reflect changes in https://github.com/pytorch/pytorch/issues/25883.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/28419
Differential Revision: D18061479
Pulled By: yf225
fbshipit-source-id: dbdc2e44e835f6125a42cf11e59723ef61903cff
