Add operator support for dynamic quant on mobile (#32479)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32479
Run dynamic quantization on mobile (similar to FBGEMM). Currently only implemented on linear operator
Test Plan:
python test/test_quantized.py TestDynamicQuantizedLinear.test_qlinear
Imported from OSS
Differential Revision: D19542980
fbshipit-source-id: c9f6e5e8ded4d62ae0f2ed99e478c8307dde22ed
