galera/mpathpersist/sg_persist/IPsrcaddr: only check notify and promotable when OCF_CHECK_LEVEL=10

[oalbrigt]

Pacemaker has started running validate-all action before creating the resource. It doesnt provide notify/promotable settings while doing so, so this patch moves these checks to OCF_CHECK_LEVEL 10 and runs the validate action at OCF_CHECK_LEVEL 10 in the start-action.