Function riot_sys::phydat_unit_to_str_verbose

pub unsafe extern "C" fn phydat_unit_to_str_verbose(
    unit: u8
) -> *const c_char

@brief Same as @ref phydat_unit_to_str

In practise all users used the verbose function anyway. Hence, @ref phydat_unit_to_str just covers all units and this is just a backward compatibility wrapper.

@deprecated Use @ref phydat_unit_print or @ref phydat_unit_write instead