[quant][fx] Don't assume bias is a keyword-argument (#71426)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71426
dbr quantization makes faulty assumptions about which arguments are
passed as keyword arguments and which are passed as positional
arguments. This happens to work currently due to a quirk of how
`__torch_function__` is implemented in python functions, but will
break when the operators are moved to C++.
Test Plan: Imported from OSS
Reviewed By: george-qi
Differential Revision: D33754262
Pulled By: albanD
fbshipit-source-id: 63515d7a166449726e1beaba6659443b6261742d
(cherry picked from commit f7b18848455cd95872b2b658111206b71ce4b3f7)
