phosh/squeekboard: reenable aarch64, x86 (!587)

This reverts commit 357ee9cd.

Rust is reenabled.
https://github.com/alpinelinux/aports/commit/6c8381ba967cd3842484965f3f7c1200a42a5539

[ci:skip-vercheck]: only arch is changed.
[ci:skip-build]: already ran successfully in CI

phosh/squeekboard/APKBUILD

@@ -5,8 +5,7 @@ pkgver=0_git20190723
 pkgrel=0
 _commit="4b66add65fa7d3875596c108430699a44d98f50e"
 pkgdesc="The final Phosh keyboard"
-# aarch64, x86: missing rust
-arch="all !aarch64 !x86"
+arch="all"
 url="https://source.puri.sm/Librem5/squeekboard"
 license="GPL-3.0-or-later"
 depends=""