No cloud.network.openshift.io/egress-ipconfig in node's annotation for UPI GCP XPN cluster, lots of failing to retrieve private IP config errors in CNCC logs

1. Built UPI GCP XPN cluster using template: functionality-testing/aos-4_14/upi-on-gcp/versioned-installer-ovn 
2. "oc describe node" on any worker node to check cloud.network.openshift.io/egress-ipconfig 
3. check cloud-network-config-controller pod log 

There is no cloud.network.openshift.io/egress-ipconfig in node's annotation, there are lots of "error retrieving the private IP configuration" error in CNCC log

cloud.network.openshift.io/egress-ipconfig should present in node's annotation, there should be no retrieving private IP config error in CNCC

$ oc -n openshift-cloud-network-config-controller log cloud-network-config-controller-67b6786d7c-txncc
flags cannot be placed before plugin name: -n
[jechen@jechen ~]$ oc -n openshift-cloud-network-config-controller logs cloud-network-config-controller-67b6786d7c-txncc
W0511 13:11:46.285444       1 client_config.go:618] Neither --kubeconfig nor --master was specified.  Using the inClusterConfig.  This might not work.
I0511 13:11:46.292453       1 leaderelection.go:248] attempting to acquire leader lease openshift-cloud-network-config-controller/cloud-network-config-controller-lock...
E0511 13:12:16.296585       1 leaderelection.go:330] error retrieving resource lock openshift-cloud-network-config-controller/cloud-network-config-controller-lock: Get "https://api-int.jechen-0511a.qe-shared-vpc.qe.gcp.devcluster.openshift.com:6443/api/v1/namespaces/openshift-cloud-network-config-controller/configmaps/cloud-network-config-controller-lock": dial tcp: lookup api-int.jechen-0511a.qe-shared-vpc.qe.gcp.devcluster.openshift.com: i/o timeout
E0511 13:13:04.688490       1 leaderelection.go:330] error retrieving resource lock openshift-cloud-network-config-controller/cloud-network-config-controller-lock: Get "https://api-int.jechen-0511a.qe-shared-vpc.qe.gcp.devcluster.openshift.com:6443/api/v1/namespaces/openshift-cloud-network-config-controller/configmaps/cloud-network-config-controller-lock": dial tcp: lookup api-int.jechen-0511a.qe-shared-vpc.qe.gcp.devcluster.openshift.com on 172.30.0.10:53: read udp 10.130.0.28:51847->172.30.0.10:53: read: connection refused
I0511 13:13:49.752088       1 leaderelection.go:258] successfully acquired lease openshift-cloud-network-config-controller/cloud-network-config-controller-lock
I0511 13:13:49.754236       1 controller.go:88] Starting node controller
I0511 13:13:49.754265       1 controller.go:91] Waiting for informer caches to sync for node workqueue
I0511 13:13:49.754493       1 controller.go:88] Starting secret controller
I0511 13:13:49.754503       1 controller.go:91] Waiting for informer caches to sync for secret workqueue
I0511 13:13:49.755050       1 controller.go:88] Starting cloud-private-ip-config controller
I0511 13:13:49.755070       1 controller.go:91] Waiting for informer caches to sync for cloud-private-ip-config workqueue
I0511 13:13:49.770422       1 controller.go:182] Assigning key: jechen-0511a-49ntn-master-0.c.openshift-qe.internal to node workqueue
I0511 13:13:49.770461       1 controller.go:182] Assigning key: jechen-0511a-49ntn-master-1.c.openshift-qe.internal to node workqueue
I0511 13:13:49.770491       1 controller.go:182] Assigning key: jechen-0511a-49ntn-master-2.c.openshift-qe.internal to node workqueue
I0511 13:13:49.855213       1 controller.go:96] Starting node workers
I0511 13:13:49.855317       1 controller.go:96] Starting cloud-private-ip-config workers
I0511 13:13:49.855621       1 controller.go:102] Started cloud-private-ip-config workers
I0511 13:13:49.855652       1 controller.go:102] Started node workers
I0511 13:13:49.855759       1 controller.go:96] Starting secret workers
I0511 13:13:49.855815       1 controller.go:102] Started secret workers
E0511 13:13:50.226995       1 controller.go:165] error syncing 'jechen-0511a-49ntn-master-0.c.openshift-qe.internal': error retrieving the private IP configuration for node: jechen-0511a-49ntn-master-0.c.openshift-qe.internal, err: error retrieving the network interface subnets, err: googleapi: Error 403: Required 'compute.subnetworks.get' permission for 'projects/openshift-qe-shared-vpc/regions/us-central1/subnetworks/aos-qe-master-subnet', forbidden, requeuing in node workqueue
E0511 13:13:50.231167       1 controller.go:165] error syncing 'jechen-0511a-49ntn-master-1.c.openshift-qe.internal': error retrieving the private IP configuration for node: jechen-0511a-49ntn-master-1.c.openshift-qe.internal, err: error retrieving the network interface subnets, err: googleapi: Error 403: Required 'compute.subnetworks.get' permission for 'projects/openshift-qe-shared-vpc/regions/us-central1/subnetworks/aos-qe-master-subnet', forbidden, requeuing in node workqueue

UPI non-XPN and IPI XPN clusters are still good, egress-ipconfig correctly present