Automatic merge from submit-queue (batch tested with PRs 46094, 48544, 48807, 49102, 44174)

Implement kubectl describe <fibre-channel PV>

kubectl did not show any details about Fibre Channel volumes, someone just forgot to implement it.

Tested with:

```shell
$ kubectl create -f - <<EOF
apiVersion: v1
kind: PersistentVolume
metadata:
  name: myfc
spec:
  capacity:
    storage: 100Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Delete
  fc:
       targetWWNs: ['500a0982991b8dc5', '500a0982891b8dc5']
       lun: 2
       fsType: ext4
       readOnly: true
EOF

$ kubectl describe pv myfc
Name:		myfc
Labels:		<none>
Annotations:	<none>
StorageClass:	
Status:		Available
Claim:		
Reclaim Policy:	Delete
Access Modes:	RWO
Capacity:	100Gi
Message:	
Source:
    Type:	FC (a Fibre Channel disk)
    TargetWWNs:	500a0982991b8dc5, 500a0982891b8dc5
    LUN:	2
    FSType:	ext4
    ReadOnly:	true
Events:		<none>
```

```release-note
NONE
```
@kubernetes/sig-cli-pr-reviews