pkcs15: Free app info when allocating new and in cleanup
pkcs15: Free app info when allocating new and in cleanup

Thanks oss-fuzz

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23746

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