[quant][fx][pyper] Get first linear use of quantize_per_tensor for FQN (#54859)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/54859
This is applicable to the case when a call_function linear op is one of the users of quantize op
In order to be able to map the qparams of quantize_per_tensor to the qparams of the linear operator
that consumes it, we need to use the FQN of the module with linear op for the qparmas of quantize_per_tensor.
Test Plan:
python test/test_quantization.py test_qparams_fqn
Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D27390505
fbshipit-source-id: a47af0e5ac016f2b2df74fbdf45afe99dc04be46
