<fix>[core]: get mn vip in Platform
<fix>[core]: get mn vip in Platform

Resolves: ZSTAC-50032

Change-Id: I7173707a787476657969696a61616a6467656166

AlanJager/zstack,AlanJager/zstack,zstackio/zstack,zstackio/zstack,zstackio/zstack,AlanJager/zstack