Fix typo

Author: okozachenko1203

api/v1alpha7/openstackcluster_webhook.go

@@ -131,8 +131,8 @@ func (r *OpenStackCluster) ValidateUpdate(oldRaw runtime.Object) (admission.Warn
 	r.Spec.ControlPlaneAvailabilityZones = []string{}
 
 	// Allow change to the allowAllInClusterTraffic.
-	old.Spec.allowAllInClusterTraffic = false
-	r.Spec.allowAllInClusterTraffic = false
+	old.Spec.AllowAllInClusterTraffic = false
+	r.Spec.AllowAllInClusterTraffic = false
 
 	if !reflect.DeepEqual(old.Spec, r.Spec) {
 		allErrs = append(allErrs, field.Forbidden(field.NewPath("spec"), "cannot be modified"))