archlinux: patches downloads and sources processing change in PKGBUILD
archlinux: patches downloads and sources processing change in PKGBUILD

Instead of downloading single patches the PKGBUILD now
clones the ungoogled-chromium git repository and uses
bundled buildkit utilities to process chromium sources.
Patches are then applied using quilt.

Eloston/ungoogled-chromium,Eloston/ungoogled-chromium