This is a reland of commit e8cac377
The proxy resolver issue is fixed in a separate CL.

Original change's description:
> [rwx][mac] Enable fast W^X on Apple Silicon (M1)
>
> Bug: v8:12797
> Change-Id: I53bb803dd77db5bdd42b1a1b4b568e63857adf31
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3598861
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#80396}

Bug: v8:12797
Change-Id: Icd897d3f3ff1f1bcfdb9e874e13f6a654c985fc8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3650925
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#80662}