scd:nks: Fix certificate read problem with TCOS signature card v2.
* scd/app-nks.c (filelist): Add a dedicated key entry for ESIGN. (do_readcert): Test for the app_id.
Backported-from-master: 07aef873ebc77241e9a2be225537319f6fc15a41
- Signed-off-by: Werner Koch <wk@gnupg.org>
- GnuPG-bug-id: T6252