[quant][fx][devs] Add lowering support for torch.cat (#72487)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/72487
This is an effort to move the current implementation towards the reference quantized model design:
https://github.com/pytorch/rfcs/blob/master/RFC-0019-Extending-PyTorch-Quantization-to-Custom-Backends.md
so that we use reference model in the default fbgemm/qnnpack path
Test Plan:
python test/test_quantization.py TestQuantizeFx
python test/test_quantization.py TestQuantizeFxOps
Imported from OSS
Reviewed By: vkuzo
Differential Revision: D34062366
fbshipit-source-id: 86673bead79180a7509b51bd577f328e90f24893
(cherry picked from commit de3e443384f372d04edaa258edcf16c8d30a7d86)
