continuation of #109595
pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.
python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.
(which is obsolete).
* lvm2: updated to 2.02.86. Also install the pkgconfig files and
build liblvm2app.
* Added libatasmart (udisks dependency for querying ATA SMART status).
* Updated sg3_utils to 1.31.
svn path=/nixpkgs/branches/kde-4.7/; revision=27908
Felix Buehler