Bug 14625 - LDAP: skip extended patron attributes in 'borrowers' attribute update

Bug 14625 - LDAP: skip extended patron attributes in 'borrowers' attribute update

* Any extended patron attributes will cause the update to fail as those attributes don't exist in the 'borrowers' table
* The update of the extended patron attributes is already dealt with in checkpw_ldap()
* Ergo: just skip those attributes here

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
I did not test this patch but code looks good

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 4c631a0824a38177279475f77e9246087fa97515)
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>