[quant][fix] Add quant_min/quant_max for default dynamic quantization observer (#89267)
Summary:
This is needed for choose qparams, but previously it is not configurable, and in the reference quantization flow
with decomposed Tensor, we are making this explicit
Test Plan:
tested in future PR
Reviewers:
Subscribers:
Tasks:
Tags:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/89267
Approved by: https://github.com/vkuzo
