staging: rtl8188eu: rename variable pnetdev -> netdev

Rename the local variable pnetdev in rtw_alloc_etherdev_with_old_priv
to avoid hungarian notation and clear the last checkpatch warning in
the file osdep_service.c.

rtl8188eu/os_dep/osdep_service.c:32: WARNING: line over 80 characters
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20200210200830.22868-1-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/os_dep/osdep_service.c

@@ -26,17 +26,17 @@ void _rtw_init_queue(struct __queue *pqueue)
 
 struct net_device *rtw_alloc_etherdev_with_old_priv(void *old_priv)
 {
-	struct net_device *pnetdev;
+	struct net_device *netdev;
 	struct rtw_netdev_priv_indicator *pnpi;
 
-	pnetdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
-	if (!pnetdev)
+	netdev = alloc_etherdev_mq(sizeof(struct rtw_netdev_priv_indicator), 4);
+	if (!netdev)
 		return NULL;
 
-	pnpi = netdev_priv(pnetdev);
+	pnpi = netdev_priv(netdev);
 	pnpi->priv = old_priv;
 
-	return pnetdev;
+	return netdev;
 }
 
 void rtw_free_netdev(struct net_device *netdev)