[quant][graphmode][fx] Support sigmoid/hardsigmoid/tanh in qat (#46738) (#46871)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/46871
Test Plan:
Imported from OSS
Imported from OSS
Reviewed By: vkuzo
Differential Revision: D24547180
fbshipit-source-id: d2eb9aa74c6e5436204376b1a2ebcc6188d3562f
