feat:3720: add ntfy to allow-in-powersave

Description

Cherry pick !226 (merged) on Android 12 .

This is one required step to remove persistent flag on foundation.e.ntfy.

Issues

https://gitlab.e.foundation/e/os/backlog/-/issues/3720

10 commandments of code review

👪 ❤️ https://gitlab.e.foundation/groups/e/-/wikis/contribute/development-processes/code-review-guidelines