[quant][graphmode][fx] Add support for fp16 bmm pattern (#52808)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/52808
Add support for producing fp16 bmm pattern
Test Plan:
python test/test_quantization.py TestQuantizeFxOps.test_bmm
Imported from OSS
Reviewed By: vkuzo
Differential Revision: D26655616
fbshipit-source-id: 1d0639303e5ca2ca4ceae08d03ebc3b25256de57
