[test] fixed torchrec registration in model zoo

[FrankLeeeee]

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Fixed #3049

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This PR fixed the torchrec registration such that the torchrec test can pass successfully.

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[github-actions]

The code coverage for the changed files is 91%.

Click me to view the complete report

Name                                                                 Stmts   Miss  Cover
----------------------------------------------------------------------------------------
tests/test_fx/test_tracer/test_torchrec_model/test_deepfm_model.py      37      3    92%
tests/test_fx/test_tracer/test_torchrec_model/test_dlrm_model.py        39      4    90%
----------------------------------------------------------------------------------------
TOTAL                                                                   76      7    91%

[github-actions]

The code coverage for the changed files is 91%.

Click me to view the complete report

Name                                                                 Stmts   Miss  Cover
----------------------------------------------------------------------------------------
tests/test_fx/test_tracer/test_torchrec_model/test_deepfm_model.py      37      3    92%
tests/test_fx/test_tracer/test_torchrec_model/test_dlrm_model.py        39      4    90%
----------------------------------------------------------------------------------------
TOTAL                                                                   76      7    91%

[github-actions]

The code coverage for the changed files is 91%.

Click me to view the complete report

Name                                                                 Stmts   Miss  Cover
----------------------------------------------------------------------------------------
tests/test_fx/test_tracer/test_torchrec_model/test_deepfm_model.py      37      3    92%
tests/test_fx/test_tracer/test_torchrec_model/test_dlrm_model.py        39      4    90%
----------------------------------------------------------------------------------------
TOTAL                                                                   76      7    91%

[github-actions]

The code coverage for the changed files is 91%.

Click me to view the complete report

Name                                                                 Stmts   Miss  Cover
----------------------------------------------------------------------------------------
tests/kit/model_zoo/torchrec/torchrec.py                                66      6    91%
tests/test_fx/test_tracer/test_torchrec_model/test_deepfm_model.py      37      3    92%
tests/test_fx/test_tracer/test_torchrec_model/test_dlrm_model.py        39      4    90%
----------------------------------------------------------------------------------------
TOTAL                                                                  142     13    91%