[pkgdb] libpng12 was added for tgl

[Fedora PackageDB]

limb has added Package libpng12 with summary Old version of libpng, needed to run old binaries
limb has approved Package libpng12
limb has added a Fedora devel branch for libpng12 with an owner of tgl
limb has approved libpng12 in Fedora devel
limb has approved Package libpng12
limb has set commit to Approved for provenpackager on libpng12 (Fedora devel)
limb has set checkout to Approved for provenpackager on libpng12 (Fedora devel)

To make changes to this package see:
  https://admin.fedoraproject.org/pkgdb/acls/name/libpng12