let standalone npd use kubelet credentials

Signed-off-by: Jake Sanders <jsand@google.com>

cluster/addons/node-problem-detector/kubelet-user-standalone/npd-binding.yaml

@@ -0,0 +1,15 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: kubelet-user-npd-binding
+  labels:
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:node-problem-detector
+subjects:
+- apiGroup: rbac.authorization.k8s.io
+  kind: User
+  name: kubelet