staging: wlan-ng: use "%*pE" for serial number

Almost every user of "%*pE" in the kernel uses just bare "%*pE".  This
is the only user of "%pEhp".  I can't see why it's needed.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Link: https://lore.kernel.org/r/1562799656-13401-1-git-send-email-bfields@redhat.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlan-ng/prism2sta.c

@@ -846,7 +846,7 @@ static int prism2sta_getcardinfo(struct wlandevice *wlandev)
 	result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICSERIALNUMBER,
 					snum, HFA384x_RID_NICSERIALNUMBER_LEN);
 	if (!result) {
-		netdev_info(wlandev->netdev, "Prism2 card SN: %*pEhp\n",
+		netdev_info(wlandev->netdev, "Prism2 card SN: %*pE\n",
 			    HFA384x_RID_NICSERIALNUMBER_LEN, snum);
 	} else {
 		netdev_err(wlandev->netdev, "Failed to retrieve Prism2 Card SN\n");