scd: Make SPRx32 pinpad work with PC/SC on Windows.
* scd/apdu.c (CM_IOCTL_GET_FEATURE_REQUEST): Use SCARD_CTL_CODE. (SCARD_CTL_CODE): Define if not defined. (reader_table_s): Add is_spr532. (new_reader_slot): Clear it. (check_pcsc_pinpad): Set it. (pcsc_pinpad_verify, pcsc_pinpad_modify): Add fix for SPR532.
- Signed-off-by: Werner Koch <wk@gnupg.org>