UTIL: Set udp_preference_limit=0 in krb5 snippet
We add udp_preference_limit = 0 to krb5 snippet if ad provider is
used. This option enable TCP connection before UDP, when sending
a message to the KDC.
Resolves:
https://pagure.io/SSSD/sssd/issue/3254
Signed-off-by: Jakub Hrozek <jhrozek@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Robbie Harwood <rharwood@redhat.com>