gpg: Autoload designated revoker key and ADSK when needed.
* g10/options.h (opt): Move the definition of struct akl to global scope. * g10/keydb.h (enum get_pubkey_modes): Add GET_PUBKEY_TRY_LDAP. * g10/getkey.c (get_pubkey_byname): Implement GET_PUBKEY_BYNAME. * g10/keygen.c (prepare_desig_revoker): Use it here. (prepare_adsk): and here.
The revoker key is required before we create it along with a new key.
This is because the we need to know the algo and also to make sure
that the key really exists.
Backported-from-master: 465ea9116d1f9467814143ed35b515034a849e86
- GnuPG-bug-id: T7133