update qemu-kvm-ev when reconnect host
update qemu-kvm-ev when reconnect host

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