Move new_criterion_tests from test_nn.py to common_nn.py (#25333)
Summary:
Moving so that `new_criterion_tests` can be used from `test_cpp_api_parity.py`.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/25333
Differential Revision: D17097188
Pulled By: yf225
fbshipit-source-id: 7f7905cc6799bca8dc6b3c9cc43995313c6bc058
