westcos-tool.c:fix memory leaks in dst->modulus.data and dst->exponent.data
westcos-tool.c:fix memory leaks in dst->modulus.data and dst->exponent.data

Signed-off-by: whzhe <078750a01273f1426fac0517f7fd27f792233f35@huawei.com>

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