Can not create intranet LB using zone-maps

[wbuntu]

What happened:

LoadBalancer type service stuck on pending state, failed to retrieve an external-ip

Reconciler error" "error"="apply model error: create nlb error: [SDKError] API: CreateLoadBalancer,StatusCode: 400, ErrorCode: IllegalParam.PrivateIPv4Address, RequestId:  xxxxxxxxxx, Message: code: 400, <nil> 

What you expected to happen:

LoadBalancer type service annotated with

 service.beta.kubernetes.io/alibaba-cloud-loadbalancer-address-type: intranet
 service.beta.kubernetes.io/alibaba-cloud-loadbalancer-zone-maps: zoneId:vswId,zoneId:vswId

is successfully reconciled

How to reproduce it (as minimally and precisely as possible):

1. deploy ccm using release v2.9.1
2. create a intranet loadbalancer type service annotated using service.beta.kubernetes.io/alibaba-cloud-loadbalancer-zone-maps