scd:openpgp: Fix workaround for Yubikey heuristics.
* scd/app-openpgp.c (parse_algorithm_attribute): Handle the case of firmware 5.4, too.
Cherry-picked master commit of:
f34b9147eb3070bce80d53febaa564164cd6c977
- GnuPG-bug-id: T6070
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>