gpg: Fix for overridden key import.
* g10/import.c (do_transfer): Force the overridden key import even when smartcard is available.
- Fixes-commit: 2c1297055041b4657ea1a927acac978c2b09a483
- GnuPG-bug-id: T3456
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>