Use AD-SUPPORT subpolicy when testing trust to Active Directory in FIPS mode. This is required in FIPS mode due to AD not supporting Kerberos AES-bases encryption types using FIPS-compliant PBKDF2 and KDF, as defined in RFC 8009. Fixes: https://pagure.io/freeipa/issue/9119 Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com> Reviewed-By: Julien Rische <jrische@redhat.com> Reviewed-By: Francisco Trivino <ftrivino@redhat.com>