loongson/pypi: links for udlayer

loongson/mirror udlayer-0.2.3.tar.gz
loongson/mirror udlayer-0.2.2.tar.gz
loongson/mirror udlayer-0.2.1.tar.gz
loongson/mirror udlayer-0.2.0.tar.gz
loongson/mirror udlayer-0.1.1.tar.gz