Fix value name (kubernetes-sigs#2816)

Author: mikutas

helm/aws-load-balancer-controller/templates/webhook.yaml

@@ -25,7 +25,7 @@ webhooks:
   - v1beta1
   namespaceSelector:
     matchExpressions:
-    {{ if .Values.webhookNamespaceSelector }}
+    {{ if .Values.webhookNamespaceSelectors }}
     {{ toYaml .Values.webhookNamespaceSelectors | nindent 4 }}
     {{ else }}
     - key: elbv2.k8s.aws/pod-readiness-gate-inject

helm/aws-load-balancer-controller/values.yaml

@@ -183,7 +183,7 @@ webhookTLS:
   key:
 
 # array of namespace selectors for the webhook
-webhookNamespaceSelector:
+webhookNamespaceSelectors:
 # - key: elbv2.k8s.aws/pod-readiness-gate-inject
 #   operator: In
 #   values: