ns for fx: support linear_relu for weight matching (#52395)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/52395
Simple change to add logic to get the weight of a quantized
`linear_relu` node.
More flavors of conv and linear will be added in future PRs.
Test Plan:
```
python test/test_quantization.py TestFXNumericSuiteCoreAPIs.test_compare_weights_fun
```
Imported from OSS
Reviewed By: hx89
Differential Revision: D26497992
fbshipit-source-id: e6d88e92eedd6cdbf9116cbcfc8f6164f8499246
