loongson/pypi: links for clientsubnetoption

loongson/mirror clientsubnetoption-3.0.0a1.tar.gz
loongson/mirror clientsubnetoption-3.0.0a1-py2-none-any.whl
loongson/mirror clientsubnetoption-2.1.1.tar.gz
loongson/mirror clientsubnetoption-2.1.1-py2-none-any.whl
loongson/mirror clientsubnetoption-2.1.0.tar.gz
loongson/mirror clientsubnetoption-2.0.0.tar.gz