[quant] Support for functional quantized::conv1d (#38449)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/38449
Also update docs to reflect conv1d op support
Test Plan:
python test/test_quantization.py TestQuantizedFunctional.test_conv1d_api
Imported from OSS
Differential Revision: D21575921
fbshipit-source-id: 21c9f6b49ad456cd9d93e97f17cf5b8d87f0da6b
