qat conv_fused.py: one more patch for forward compatibility (#44671)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/44671
See comments inline - the FC between
https://github.com/pytorch/pytorch/pull/38478 and
https://github.com/pytorch/pytorch/pull/38820 was broken,
patching it.
Test Plan: Verified with customer hitting the issue that this fixes their issue.
Reviewed By: jerryzh168
Differential Revision: D23694029
fbshipit-source-id: a5e1733334e22305a111df750b190776889705d0
