Update permissions for GCP

The addInstances and removeInstances for instance groups should actually be the update permission. The listInstances just needs instanceGroups.get.
The addInstance and removeInstance for targetpools also needs instances.use.

Author: JoelSpeed

manifests/0000_26_cloud-controller-manager-operator_16_credentialsrequest-gcp.yaml

@@ -35,13 +35,12 @@ spec:
     - "compute.httpHealthChecks.delete"
     - "compute.httpHealthChecks.get"
     - "compute.httpHealthChecks.update"
-    - "compute.instanceGroups.addInstances"
     - "compute.instanceGroups.create"
     - "compute.instanceGroups.delete"
     - "compute.instanceGroups.get"
-    - "compute.instanceGroups.listInstances"
-    - "compute.instanceGroups.removeInstances"
+    - "compute.instanceGroups.update"
     - "compute.instances.get"
+    - "compute.instances.use"
     - "compute.regionBackendServices.create"
     - "compute.regionBackendServices.delete"
     - "compute.regionBackendServices.get"