net: aquantia: fix spelling mistake: tx_queus -> tx_queues

There is a spelling mistake in a netdev_err error message. Fix it.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Reviewed-by: NIgor Russkikh <irusskikh@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/aquantia/atlantic/aq_ptp.c

@@ -533,7 +533,7 @@ void aq_ptp_tx_hwtstamp(struct aq_nic_s *aq_nic, u64 timestamp)
 	struct skb_shared_hwtstamps hwtstamp;
 
 	if (!skb) {
-		netdev_err(aq_nic->ndev, "have timestamp but tx_queus empty\n");
+		netdev_err(aq_nic->ndev, "have timestamp but tx_queues empty\n");
 		return;
 	}