kdc:db-glue: ignore KRB5_PROG_ETYPE_NOSUPP also for Primary:Kerberos

kdc:db-glue: ignore KRB5_PROG_ETYPE_NOSUPP also for Primary:Kerberos

Currently we only ignore KRB5_PROG_ETYPE_NOSUPP for
Primary:Kerberos-Newer-Keys, but not for Primary:Kerberos.

If a service account has msDS-SupportedEncryptionTypes: 31
and DES keys stored in Primary:Kerberos, we'll pass the
DES key to smb_krb5_keyblock_init_contents(), but may get
KRB5_PROG_ETYPE_NOSUPP.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14354

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Isaac Boukris <iboukris@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Jul 28 14:04:26 UTC 2020 on sn-devel-184

(cherry picked from commit 4baa7cc8e473f6b63316b4ae5db34796c0f864c3)

Autobuild-User(v4-12-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-12-test): Thu Aug  6 11:00:25 UTC 2020 on sn-devel-184