update kubernetes vendor for new CRI change

Signed-off-by: Crazykev <crazykev@zju.edu.cn>

pkg/server/imagefs_info.go

@@ -0,0 +1,30 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package server
+
+import (
+	"errors"
+
+	"golang.org/x/net/context"
+
+	runtime "k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1"
+)
+
+// ImageFsInfo returns information of the filesystem that is used to store images.
+func (c *criContainerdService) ImageFsInfo(ctx context.Context, r *runtime.ImageFsInfoRequest) (*runtime.ImageFsInfoResponse, error) {
+	return nil, errors.New("not implemented")
+}