agent: Send the new SETKEYINFO command to the Pinentry.
* agent/call-pinentry.c (agent_askpin): Add args keyinfo and cache_mode. Change all callers to pass (NULL,0) for them. Send SETKEYINFO command. * agent/findkey.c (unprotect): Pass the keygrip and the cache_mode for the new args.
- Signed-off-by: Werner Koch <wk@gnupg.org>