Only functionalize ops which we want to include in mkldnn group (#51924)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/51924
Test Plan: Imported from OSS
Reviewed By: navahgar
Differential Revision: D26696705
Pulled By: eellison
fbshipit-source-id: df2a780f6316d66f0d6ae99bbb54d044947195e5
