mlxsw: i2c: Fix comment misspelling

Fix comment for mlxsw_i2c_write_cmd().
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/i2c.c

@@ -167,7 +167,7 @@ static int mlxsw_i2c_wait_go_bit(struct i2c_client *client,
 	return err > 0 ? 0 : err;
 }
 
-/* Routine posts a command to ASIC though mail box. */
+/* Routine posts a command to ASIC through mail box. */
 static int mlxsw_i2c_write_cmd(struct i2c_client *client,
 			       struct mlxsw_i2c *mlxsw_i2c,
 			       int immediate)