GitLab

Summary:
- Set global matplotlib rc params
- Fix style check
- Fix and updates FA tutorial plots
- Add av-asr index cars

Pull Request resolved: https://github.com/pytorch/audio/pull/3515

Reviewed By: huangruizhe

Differential Revision: D47894156

Pulled By: mthrok

fbshipit-source-id: b40d8d31f12ffc2b337e35e632afc216e9d59a6e