[PATCH 1/1] pylibfdt: correct license information

[Bryan Brattlof]

On June  7, 2025 thus sayeth Heinrich Schuchardt:
> Setuptools 78.1.1 shows warnings:
> 
> * Pattern 'GPL' did not match any files.
> * Pattern 'BSD-2-Clause' did not match any files.
> * SetuptoolsDeprecationWarning: License classifiers are deprecated.
> 
> Cf. https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license
> 
> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>

Reviewed-by: Bryan Brattlof <bb at ti.com>

~Bryan