oberthur: Fix memory leaks
oberthur: Fix memory leaks

Thanks oss-fuzz

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149

metsma/OpenSC,dengert/OpenSC,frankmorgner/OpenSC,LudovicRousseau/OpenSC,metsma/OpenSC,metsma/OpenSC,Jakuje/OpenSC,philipWendland/OpenSC,LudovicRousseau/OpenSC,mouse07410/OpenSC,philipWendland/OpenSC,OpenSC/OpenSC,frankmorgner/OpenSC,fabled/OpenSC,LudovicRousseau/OpenSC,frankmorgner/OpenSC,dengert/OpenSC,frankmorgner/OpenSC,philipWendland/OpenSC,fabled/OpenSC,Jakuje/OpenSC,OpenSC/OpenSC,Jakuje/OpenSC,dengert/OpenSC,fabled/OpenSC,mouse07410/OpenSC,OpenSC/OpenSC,Jakuje/OpenSC,fabled/OpenSC,mouse07410/OpenSC