staging: r8188eu: convert DBG_88E calls in os_dep/xmit_linux.c

Convert three DBG_88E macro calls in core/rtw_ap.c to use netdev_dbg
as their information may be useful to observers, and this gets the
driver closer to the point of being able to remove DBG_88E itself.
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20220108005550.26264-3-phil@philpotter.co.ukSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/os_dep/xmit_linux.c

@@ -79,7 +79,7 @@ int rtw_os_xmit_resource_alloc(struct adapter *padapter, struct xmit_buf *pxmitb
 	for (i = 0; i < 8; i++) {
 		pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
 		if (!pxmitbuf->pxmit_urb[i]) {
-			DBG_88E("pxmitbuf->pxmit_urb[i]==NULL");
+			netdev_dbg(padapter->pnetdev, "pxmitbuf->pxmit_urb[i]==NULL");
 			return _FAIL;
 		}
 	}
@@ -188,14 +188,14 @@ static int rtw_mlcst2unicst(struct adapter *padapter, struct sk_buff *skb)
 			memcpy(newskb->data, psta->hwaddr, 6);
 			res = rtw_xmit(padapter, &newskb);
 			if (res < 0) {
-				DBG_88E("%s()-%d: rtw_xmit() return error!\n", __func__, __LINE__);
+				netdev_dbg(padapter->pnetdev, "rtw_xmit() return error!\n");
 				pxmitpriv->tx_drop++;
 				dev_kfree_skb_any(newskb);
 			} else {
 				pxmitpriv->tx_pkts++;
 			}
 		} else {
-			DBG_88E("%s-%d: skb_copy() failed!\n", __func__, __LINE__);
+			netdev_dbg(padapter->pnetdev, "skb_copy() failed!\n");
 			pxmitpriv->tx_drop++;
 
 			spin_unlock_bh(&pstapriv->asoc_list_lock);