These are vernacular terms, often wrongly applied.
As you've already pointed out up-thread, even the factory stock brakes could be termed 'FIA brakes'. Anything mentioned in the FIA homologation, or evolutions/amendments of it, are technically 'FIA compliant'. The question is more a case of what rules the competition is running to.
I would imagine the car in question is fitted with Sumitomo MK63 4-pot brake calipers, either the vented rotor type or the skinnier sold rotor type. They were homologated for Appendix K competition use in the FIA 3023 fiche.
well that was too easy to put to bed am I right the solid rotors in question are the standard rotors? I think that would be my ideal combination - mk63 calipers on stock rotors.