pkcs15-tccardos: Avoid negative indexing
pkcs15-tccardos: Avoid negative indexing

mouse07410/OpenSC,CardContact/OpenSC,metsma/OpenSC,AktivCo/OpenSC,philipWendland/OpenSC,frankmorgner/OpenSC,fabled/OpenSC,frankmorgner/OpenSC,AktivCo/OpenSC,fabled/OpenSC,Jakuje/OpenSC,Jakuje/OpenSC,mouse07410/OpenSC,dengert/OpenSC,hongquan/OpenSC-main,rickyepoderi/OpenSC,CardContact/OpenSC,frankmorgner/OpenSC,dengert/OpenSC,LudovicRousseau/OpenSC,LudovicRousseau/OpenSC,CardContact/OpenSC,LudovicRousseau/OpenSC,hongquan/OpenSC-main,frankmorgner/OpenSC,rickyepoderi/OpenSC,fabled/OpenSC,OpenSC/OpenSC,mouse07410/OpenSC,philipWendland/OpenSC,metsma/OpenSC,hongquan/OpenSC-main,metsma/OpenSC,rickyepoderi/OpenSC,Jakuje/OpenSC,philipWendland/OpenSC,Jakuje/OpenSC,OpenSC/OpenSC,dengert/OpenSC,OpenSC/OpenSC,AktivCo/OpenSC,fabled/OpenSC