ns for fx: fix bug in weight extraction testing (#55431)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/55431
Fixes a bug in the test cases, returning early resulted
in some tests not being run. Adds logic for `nni.LinearReLU`,
which was unmasked by making the tests run
Test Plan:
```
python test/test_quantization.py TestFXNumericSuiteCoreAPIs.test_extract_weights_mod
```
Imported from OSS
Reviewed By: hx89
Differential Revision: D27622415
fbshipit-source-id: 79d9e3125e5d881d9d13645abbe4bd007a5e1d44
