quant fx: fix typo (#48356)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48356
As titled
Test Plan:
CI
Imported from OSS
Reviewed By: jerryzh168
Differential Revision: D25140834
fbshipit-source-id: e22f8d1ae77c7eb2ec8275b5fbca7dc5e503a4ca
