Log Message:
Update netatalk22 to patch release 2.2.6.

For changes see
<https://github.com/Netatalk/Netatalk/commits/branch-netatalk-2-2>
- the upstream release branch does not have a changelog.

Upstream took a lot of our patches - thanks, guys!

Package changes include untangling ldap support, so that the package
builds with it. There has been confusion between acl and ldap support
upstream as well as in the package - see
patch-include_atalk_ldapconfig.h and
<https://github.com/Netatalk/Netatalk/commits/branch-netatalk-2-2/include/atalk/ldapconfig.h>.