This lets a LUKS2 cryptodisk have its cipher and hash filled out, otherwise they wouldn't be initialized if cheat mounted. Signed-off-by: Josselin Poiret <dev@jpoiret.xyz> Tested-by: Glenn Washburn <development@efficientek.com> Reviewed-by: Patrick Steinhardt <ps@pks.im> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>