[Quant][Inductor] Enable quantization conv pattern fusion inside inductor (#104588)
**Summary**
Enable the `dequant-quantization-quant` pattern fusion and lowering inside inductor.
**Test Plan**
```
python -m pytest test_mkldnn_pattern_matcher.py -k test_qconv2d_unary
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/104588
Approved by: https://github.com/jgong5, https://github.com/eellison
ghstack dependencies: #104580, #104581
