On SLE{S,D} 11 and 12, this directory is owned/provided by cups-drivers and cups-filters respectively.
On OpenSuSE systems prior to 13.2, this directory was not provided by any package, so cups-x2go has to own it.
OpenSuSE 42.1+ provides cups-filters that owns this directory, consistently with SLE{S,D} 12.
OpenSuSE 13.2 is a special case: even though the cups-filters package is available there (and also owns %{_datadir}/ppd/), it conflicts with the cups package, which makes it useless. Let cups-x2go own this directory instead on OpenSuSE 13.2.