loongson/pypi: links for devtoolkit

loongson/mirror devtoolkit-0.2.2-py3-none-any.whl
loongson/mirror devtoolkit-0.2.1-py3-none-any.whl
loongson/mirror devtoolkit-0.2-py3-none-any.whl
loongson/mirror devtoolkit-0.1-py3-none-any.whl