Description of problem:
Could not use label selector to pvc and pv when there is default storageclass
Version-Release number of selected component (if applicable):
oc v3.6.121
kubernetes v1.6.1+5115d708d7
features: Basic-Auth GSSAPI Kerberos SPNEGO

How reproducible:
Always

Steps to Reproduce:
1.Check default storageclas
[root@ip-172-18-9-120 ~]# oc get storageclass
NAME            TYPE
gp2 (default)   kubernetes.io/aws-ebs 

2.Create a pv with labels
kind: PersistentVolume
apiVersion: v1
metadata:
  name: ebs1
  labels:
    type: local
spec:
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteOnce
  claimRef:
    name: ebs1
  awsElasticBlockStore:
    volumeID: "aws://us-east-1d/vol-069b4699ba83241a0"
    fsType: "ext4"

3.Create a pvc
{
    "apiVersion": "v1",
    "kind": "PersistentVolumeClaim",
    "metadata": {
        "name": "ebs1"
    },
    "spec": {
        "accessModes": [ "ReadWriteOnce" ],
        "resources": {
            "requests": {
                "storage": "1Gi"
            }
        },
       "selector": {
           "matchLabels": {
             "type": "local"
           }
        },
      "persistentVolumeReclaimPolicy": "Retain"
   }
}

[root@ip-172-18-9-120 ~]# oc get pvc
NAME      STATUS    VOLUME    CAPACITY   ACCESSMODES   STORAGECLASS   AGE
ebs1      Pending                                      gp2            3s
[root@ip-172-18-9-120 ~]# oc describe pvc
Name:		ebs1
Namespace:	default
StorageClass:	gp2
Status:		Pending
Volume:		
Labels:		<none>
Annotations:	volume.beta.kubernetes.io/storage-provisioner=kubernetes.io/aws-ebs
Capacity:	
Access Modes:	
Events:
  FirstSeen	LastSeen	Count	From				SubObjectPath	Type		Reason			Message
  ---------	--------	-----	----				-------------	--------	------			-------
  15s		14s		2	persistent-volume-controller			Warning		ProvisioningFailed	Failed to provision volume with StorageClass "gp2": claim.Spec.Selector is not supported for dynamic provisioning on AWS

Actual results:
PV and pvc is not bond

Expected results:
PV and pvc should bond, there should be a method to avoid default storageclass
Master Log:

Node Log (of failed PODs):

PV Dump:

PVC Dump:

StorageClass Dump (if StorageClass used by PV/PVC):

Additional info: