Documentation: fix vxlan typo in mlx5.rst

Fix a vxlan typo in the mlx5 driver documentation.
Signed-off-by: Hans Wippel <ndev@hwipl.net>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

Documentation/networking/device_drivers/mellanox/mlx5.rst

@@ -101,7 +101,7 @@ Enabling the driver and kconfig options
 **External options** ( Choose if the corresponding mlx5 feature is required )
 
 - CONFIG_PTP_1588_CLOCK: When chosen, mlx5 ptp support will be enabled
-- CONFIG_VXLAN: When chosen, mlx5 vxaln support will be enabled.
+- CONFIG_VXLAN: When chosen, mlx5 vxlan support will be enabled.
 - CONFIG_MLXFW: When chosen, mlx5 firmware flashing support will be enabled (via devlink and ethtool).
 
 Devlink info