scd: Make option --homedir work.
* scd/scdaemon.c (opts): Add --homedir.
Backport of master commit: def512eb67c8a380f3b873cee0f156deef0b6dda
Without that entry the homedir setting won't work.
- GnuPG-bug-id: T2386
- Signed-off-by: Werner Koch <wk@gnupg.org>