QNNPACK: Update to use pytorch/cpuinfo.git repo as a third party dependency (#67106)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/67106
Test Plan: Recloned cpuinfo, rebuilt, and ran all the tests locally
Reviewed By: kimishpatel
Differential Revision: D31782317
fbshipit-source-id: 4a71be91f02bb6278db7e0124366d8009e7c7a60
