Small memory leak fix (CVE-2019-6502 in #1586)
Small memory leak fix (CVE-2019-6502 in #1586)

CVE-2019-6502 was assigned to what appears to be a very minor
memory leak that only occurs on an error-case in a CLI tool.
If util_connect_card fails, we still need to release the sc
context previously allocated by sc_context_create else memory
will leak.

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