tags: Correct previously discovered readTagsForResource typo

As we use it in datacenters as well.

vsphere/resource_vsphere_datacenter.go

@@ -142,7 +142,7 @@ func resourceVSphereDatacenterRead(d *schema.ResourceData, meta interface{}) err
 
 	// Read tags if we have the ability to do so
 	if tagsClient, _ := meta.(*VSphereClient).TagsClient(); tagsClient != nil {
-		if err := readTagsForResoruce(tagsClient, dc, d); err != nil {
+		if err := readTagsForResource(tagsClient, dc, d); err != nil {
 			return err
 		}
 	}