add a quantized hardsigmoid inplace variant (#65740)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/65740
fp32 hardsigmoid supports inplace. This PR adds the inplace support to the quantized
hardsigmoid function, to make the signatures match.
Test Plan:
```
python test/test_quantization.py TestQuantizedOps.test_qhardsigmoid
```
Reviewed By: supriyar
Differential Revision: D31992282
Pulled By: vkuzo
fbshipit-source-id: f6be65d72954ab8926b36bb74a5e79d422fbac90
