net/mlx5e: Use u64 instead of __u64 in ieee_setmaxrate

Change upper_limit_mbps/gbps from __u64 to u64 to follow kernel coding
conventions.

Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Nimrod Oren <noren@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1764498334-1327918-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: gal-pressman

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

@@ -595,8 +595,8 @@ static int mlx5e_dcbnl_ieee_setmaxrate(struct net_device *netdev,
 	struct mlx5_core_dev *mdev = priv->mdev;
 	u8 max_bw_value[IEEE_8021QAZ_MAX_TCS];
 	u8 max_bw_unit[IEEE_8021QAZ_MAX_TCS];
-	__u64 upper_limit_mbps;
-	__u64 upper_limit_gbps;
+	u64 upper_limit_mbps;
+	u64 upper_limit_gbps;
 	int i;
 	struct {
 		int scale;