Kill vm before report mn to avoid both network down cause error  Resolves ZSTAC-4766
Kill vm before report mn to avoid both network down cause error
 Resolves ZSTAC-4766

zstackio/zstack-utility,zstackorg/zstack-utility,zstackio/zstack-utility,zstackorg/zstack-utility,zstackorg/zstack-utility,live4thee/zstack-utility,live4thee/zstack-utility,live4thee/zstack-utility,zstackio/zstack-utility