atheros/atl1c:fix repeated words in comments

Delete the redundant word 'slot'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Link: https://lore.kernel.org/r/20220629081632.54445-1-yuanjilin@cdjrlc.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/atheros/atl1c/atl1c_main.c

@@ -2849,7 +2849,7 @@ static pci_ers_result_t atl1c_io_error_detected(struct pci_dev *pdev,
 
 	pci_disable_device(pdev);
 
-	/* Request a slot slot reset. */
+	/* Request a slot reset. */
 	return PCI_ERS_RESULT_NEED_RESET;
 }