pci: fix iov.c kernel-doc warnings

Fix kernel-doc warning in iov.c:

  Warning(drivers/pci/iov.c:752): No description found for parameter 'numvfs'
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Sorry-by: NDon Dutile <ddutile@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/pci/iov.c

@@ -739,7 +739,7 @@ EXPORT_SYMBOL_GPL(pci_num_vf);
 /**
  * pci_sriov_set_totalvfs -- reduce the TotalVFs available
  * @dev: the PCI PF device
- * numvfs: number that should be used for TotalVFs supported
+ * @numvfs: number that should be used for TotalVFs supported
  *
  * Should be called from PF driver's probe routine with
  * device's mutex held.