Move fontconfig baseline to 2.4.1 (RHEL 5 version)

Change-Id: Ie79f534e7f5aa8fc9a87996c68e1251260403f66
Reviewed-on: https://gerrit.libreoffice.org/7460
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>