When using yubikey_mass_enroll --yubimode YUBICO we store prefix and tokenid in table tokeninfo.
When I use --filename to later import the file in Privacyidea, we only store the secret.
So a token after import can only be used for /validate/check, only after the first use
in privacyidea we can use the token in /ttype/yubikey.
I think we need to add the missing data to the csv-file and enhance the token import.