mac m1 `mps` integration (#18598)
* mac m1 `mps` integration
* Update docs/source/en/main_classes/trainer.mdx
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
* addressing comments
* Apply suggestions from code review
Co-authored-by: Dan Saattrup Nielsen <47701536+saattrupdan@users.noreply.github.com>
* resolve comment
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Dan Saattrup Nielsen <47701536+saattrupdan@users.noreply.github.com>
