Support activation quantization without scaling (#2607)
Summary:
Pull Request resolved: https://github.com/pytorch/benchmark/pull/2607
X-link: https://github.com/pytorch/pytorch/pull/148380
We enable the activation quantization in the forward pass, and users can customize the dtype they want to quantize.
Reviewed By: Hahu803, avicizhu
Differential Revision: D70522237
fbshipit-source-id: 9c501506e8bd40a1199fafb2e28e6384e7df4786
