[Quant][fx] Add lowering for functional linear (#72855)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/72855
This adds functionality to lower reference models
involving functional linear in FX.
Test Plan:
python test/test_quantization.py TestQuantizeFxOps.test_functional_linear
Imported from OSS
Reviewed By: albanD
Differential Revision: D34514127
fbshipit-source-id: 7af4f37bdeda710dc7197ede9d46f66227d7932c
(cherry picked from commit a14cbc04dea4e578643c4183f0c8ea43fbdaf5c7)
