card-westcos.c: Update length after encryption
card-westcos.c: Update length after encryption

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