[quant][graphmode][fx][bc-breaking] Support for reference pattern for fixqparam ops...

[quant][graphmode][fx][bc-breaking] Support for reference pattern for fixqparam ops in eval mode (#62608)

Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/62608

Insert extra fixeqparam fake quant in the output of fixed qparam ops in fbgemm e.g. sigmoid
so that we can produce reference patterns for these ops

Test Plan:
python test/test_quantization.py TestQuantizeFx
python test/test_quantization.py TestQuantizeFxOps

Imported from OSS

Reviewed By: iramazanli

Differential Revision: D30053978

fbshipit-source-id: c527944b6e791bb4d45ebe96265af52794203695