sm: Fix parsing encrypted data.
* sm/minip12.c (cram_octet_string): Finish when N==0. (parse_bag_encrypted_data): Support constructed data with multiple octet strings.
Backport master commit of:
6c50834c0905b55ee2da18728194dd4c93c377bf
- GnuPG-bug-id: T5793
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>