scd: Internal CCID driver fix.
* scd/ccid-driver.c (intr_cb): More useful debug output. (ccid_slot_status): Remove redundant condition.
Backport master commit of:
1444203ca32ccfa4bd5097d2d49565c4055c620b
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>