loongson/pypi: links for docker-registry

loongson/mirror docker-registry-0.9.1.tar.gz
loongson/mirror docker-registry-0.9.0.tar.gz
loongson/mirror docker-registry-0.8.1.tar.gz
loongson/mirror docker-registry-0.8.0.tar.gz
loongson/mirror docker-registry-0.7.3.tar.gz
loongson/mirror docker-registry-0.7.2.tar.gz
loongson/mirror docker-registry-0.7.1.tar.gz
loongson/mirror docker-registry-0.7.0.tar.gz