loongson/pypi: links for upkit

loongson/mirror upkit-0.4.2.tar.gz
loongson/mirror upkit-0.4.2-py2-none-any.whl
loongson/mirror upkit-0.4.1.tar.gz
loongson/mirror upkit-0.4.1-py2-none-any.whl
loongson/mirror upkit-0.3.3.tar.gz
loongson/mirror upkit-0.3.3-py2-none-any.whl