Automated submodule update: FBGEMM (pytorch#72647)

Summary:
This is an automated pull request to update the first-party submodule for [pytorch/FBGEMM](https://github.com/pytorch/FBGEMM).

New submodule commit: pytorch/FBGEMM@a358709

Pull Request resolved: pytorch#72647

Test Plan: Ensure that CI jobs succeed on GitHub before landing.

Reviewed By: jasonjk-park

Differential Revision: D34135478

fbshipit-source-id: 0c8de4f7c6cd9ea27dc30d1d7f24a910e96bf36b
(cherry picked from commit b2a33e3)