openpgp-tool: Fix typos OpenGPG -> OpenPGP
openpgp-tool: Fix typos OpenGPG -> OpenPGP

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