Add <cinttypes> include to resolve PRIu32 macro (#26745)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26745
This file doesn't appear to be included by default on GCC 7.3 and
causes compilation to fail. Adding this include fixes compilation.
Test Plan: Imported from OSS
Differential Revision: D17566444
Pulled By: pietern
fbshipit-source-id: 9afb3d4596e424efc5a6ea6ab3b1cffdb2b41fbb
