[Dev] [libreboot-util] PKGBUILD

[bill-auger]

one note about this PKGBUILD

> pkgrel=15
> _upstream_ver=20220710
> pkgver=4.15.libreboot${_upstream_ver}

because pkgver includes _upstream_ver, whenever
_upstream_ver changes, pkgver changes

whenever pkgver changes, pkgrel should reset to 1, or if you are
using another PKGBULID as a guide, whatever the upstream
PKGBUILD has for that version.

this is a parabola-only PKGBUILD, so there is no upstream
PKGBULID to compare against - so pkgrel should be 1 now