net/mlx5e: Use u8 instead of int for LRO number of segments

Range of LRO number of segments fits in u8.
Also, bring initialization and declaration together to
save code.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c

@@ -681,11 +681,10 @@ static inline void mlx5e_build_rx_skb(struct mlx5_cqe64 *cqe,
 				      struct mlx5e_rq *rq,
 				      struct sk_buff *skb)
 {
+	u8 lro_num_seg = be32_to_cpu(cqe->srqn) >> 24;
 	struct net_device *netdev = rq->netdev;
-	int lro_num_seg;
 
 	skb->mac_len = ETH_HLEN;
-	lro_num_seg = be32_to_cpu(cqe->srqn) >> 24;
 	if (lro_num_seg > 1) {
 		mlx5e_lro_update_hdr(skb, cqe, cqe_bcnt);
 		skb_shinfo(skb)->gso_size = DIV_ROUND_UP(cqe_bcnt, lro_num_seg);