card: Print keyinfo for PIV cards.
* scd/app-piv.c (do_learn_status): Print CHV-STATUS. * tools/card-tool.h (struct card_info_s): Rename chvretry to chvinfo. * tools/card-call-scd.c (learn_status_cb): Depend CHV-STATUS on app type. * tools/gpg-card-tool.c (list_piv): New.
- Signed-off-by: Werner Koch <wk@gnupg.org>