staging/cxt1e1: use netdev_priv to fix build

From: Randy Dunlap <[email protected]>

Fix cxt1e1 build error:
drivers/staging/cxt1e1/linux.c:1195: error: 'struct net_device' has no member named 'priv'

Signed-off-by Randy Dunlap <[email protected]>

Cc Bob Beers <[email protected]>

---
 drivers/staging/cxt1e1/linux.c |    2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/staging/cxt1e1/linux.c +1 -1

@@ -1192,7 +1192,7 @@ c4_add_dev (hdw_info_t * hi, int brdno,
                 hi->devname, irq1);
         unregister_netdev (ndev);
         free_irq (irq0, ndev);
-        OS_kfree (ndev->priv);
+        OS_kfree (netdev_priv(ndev));
         OS_kfree (ndev);
         error_flag = EIO;
         return 0;