loongson/pypi: links for sgcontrol

loongson/mirror sgcontrol-0.5.9.tar.gz
loongson/mirror sgcontrol-0.5.8.tar.gz
loongson/mirror sgcontrol-0.5.7.tar.gz
loongson/mirror sgcontrol-0.5.6.tar.gz
loongson/mirror sgcontrol-0.5.tar.gz