net: nxp: Fix use correct return type for ndo_start_xmit()

The method ndo_start_xmit() returns a value of type netdev_tx_t. Fix
the ndo function to use the correct type.
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/nxp/lpc_eth.c

@@ -1030,7 +1030,8 @@ static int lpc_eth_close(struct net_device *ndev)
 	return 0;
 }
 
-static int lpc_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t lpc_eth_hard_start_xmit(struct sk_buff *skb,
+					   struct net_device *ndev)
 {
 	struct netdata_local *pldat = netdev_priv(ndev);
 	u32 len, txidx;