Automated submodule update: FBGEMM (#74633)
Summary:
This is an automated pull request to update the first-party submodule for [pytorch/FBGEMM](https://github.com/pytorch/FBGEMM).
New submodule commit: https://github.com/pytorch/FBGEMM/commit/ef22aabc8bddedb94a4214f263d50edf2a64e2d6
Pull Request resolved: https://github.com/pytorch/pytorch/pull/74633
Test Plan: Ensure that CI jobs succeed on GitHub before landing.
Reviewed By: jianyuh
Differential Revision: D35088395
Pulled By: geyyer
fbshipit-source-id: cb6808719a545c318302ed2770b3c7fa459fe169
(cherry picked from commit dfba6a9441136ff8563e80e6a09c555ad6a3af5a)
