ipa-kdb: add primary group to list of groups in MS-PAC
    
    Somehow, we weren't adding primary group of the user to the list of
    groups in the PAC Logon Info structure.
    
    Related: https://pagure.io/freeipa/issue/8319
    
    Signed-off-by: Alexander Bokovoy <abokovoy@redhat.com>
    Reviewed-By: Isaac Boukris <iboukris@redhat.com>
    Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>