loongson/pypi: links for sinal2

loongson/mirror SinaL2-0.6.tar.gz
loongson/mirror SinaL2-0.5.tar.gz
loongson/mirror SinaL2-0.4.tar.gz
loongson/mirror SinaL2-0.3.tar.gz
loongson/mirror SinaL2-0.2.tar.gz
loongson/mirror SinaL2-0.1.tar.gz