totemknet: Check both cipher and hash for crypto

Previously only crypto cipher was used as a way to find out if crypto is
enabled or disabled.

This usually works ok until cipher is set to none and hash to some other
value (like sha1). Such config is perfectly valid and it was not
supported correctly.

As a solution, check both cipher and hash.

Signed-off-by: Jan Friesse <jfriesse@redhat.com>
Reviewed-by: Fabio M. Di Nitto <fdinitto@redhat.com>
Reviewed-by: Christine Caulfield <ccaulfie@redhat.com>