[PyTorch][AMD] fix hipify_python (#76720)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/76720
This PR fixes an issue in hipify_python introduced by https://github.com/pytorch/pytorch/pull/76141.
https://github.com/pytorch/pytorch/pull/76141 made all the `includes` paths "absolute", but this was not done for `args.extra_include_dir`; `new_dir`, which is a relative path, is directly added to `includes`. This PR fixes it by passing the absolute path (`abs_new_dir`).
Test Plan: CI
Reviewed By: albanD
Differential Revision: D36089556
fbshipit-source-id: 1607075a4cb13696c1b25923f56b08a8cb3c6578
(cherry picked from commit 2ca648728f01c03320015f90d33404e75f978206)
