pkcs11-global: Obey to the tokenPresent parameter on C_GetSlotList
pkcs11-global: Obey to the tokenPresent parameter on C_GetSlotList

Since commit dba0f56 the tokenPresent parameter is ignored in case the
slot has been already seen.

This breaks the API expectations as we may return a slot that has no
token inserted.

So, only consider the SC_PKCS11_SLOT_FLAG_SEEN if tokenPresent is false

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