Ticket 47355 - dse.ldif doesn't replicate update to nsslapd-sasl-mapping-fallback
    
    Bug Description: Setting the feature on and off through ldapmodify can leave the dse.ldif
                     in an inconsistent state.
    
    Fix Description: Using a Slapi_Counter is not necessary, and it caused issues.  Set the config
                     type back to integer.
    
    https://fedorahosted.org/389/ticket/47355
    
    reviewed by: richm(Thanks!)
    (cherry picked from commit ba0d57922339a1f114db236da28112280f2ec9c1)