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

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.