net/tls: Device offload to use lowest netdevice in chain

Do not call the tls_dev_ops of upper devices. Instead, ask them
for the proper lowest device and communicate with it directly.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

net/tls/tls_device.c

@@ -113,7 +113,7 @@ static struct net_device *get_netdev_for_sock(struct sock *sk)
 	struct net_device *netdev = NULL;
 
 	if (likely(dst)) {
-		netdev = dst->dev;
+		netdev = netdev_sk_get_lowest_dev(dst->dev, sk);
 		dev_hold(netdev);
 	}