eager quant: convert mapping for fused QAT Linear-Bn1d (#72796)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/72796
Adds the eager mode convert mappint for fused QAT Linear-Bn1d module.
Test Plan:
```
python test/test_quantization.py TestQuantizeEagerQATNumerics.test_linear_bn_workflow
```
Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D34213150
fbshipit-source-id: c08b5eb843dea673fd07c6b7b93dcd3ba03eaec2
(cherry picked from commit 722edfe6763940340c3d0f1f282f1a41b85be29f)
