Fix typo 'fiber channel' (#8957)

Signed-off-by: Misty Stanley-Jones <[email protected]>

Author: Misty Stanley-Jones

content/en/docs/concepts/storage/persistent-volumes.md

@@ -511,7 +511,7 @@ applicable.
 
 * AWSElasticBlockStore
 * AzureDisk
-* FC (Fiber Channel)
+* FC (Fibre Channel)
 * GCEPersistentDisk
 * iSCSI
 * Local volume