Ticket 49258 - Allow nsslapd-cache-autosize to be modified while the server is running
Bug Description: Previously you're not allowed to set nsslapd-cache-autosize, and
nsslapd-cache-autosize-set while the server was running. The only
way to set it was to edit the dse.ldif
Fix Description: Allow it to be set while the server is running. Also added value
validation for these settigs
https://pagure.io/389-ds-base/issue/49258
Reviewed by: tbordaz(Thanks!)