scd:p15: New flag APP_LEARN_FLAG_REREAD.
* scd/app-p15.c (do_deinit): Factor code out to ... (release_lists, release_tokeninfo): new. (read_ef_tokeninfo): Reset all data before reading. (read_p15_info): Ditto. (do_learn_status): Implement reread flag.
Objects of a card may be protected by a PIN and thus only readble
after a verify command. This new flag makes it possible to gather the
entire PKCS#15 card info again without a need for a reset (and thus
loss of the verify status).
- Signed-off-by: Werner Koch <firstname.lastname@example.org>