Ensure that key stubs are created for all keys on a smartcard
Fixes the issue where a smartcard has to be used via command line once before it can be used via Kleopatra.
Tested with GPG and PIV cards, not tested with P15 or netcard.
kloecker: I have verified that it also works for P15 cards and NetKey cards.
- GnuPG-bug-id: T5782