loongson/pypi: links for stackstrap

loongson/mirror stackstrap-0.2.2.tar.gz
loongson/mirror stackstrap-0.2.1.tar.gz
loongson/mirror stackstrap-0.2.0.tar.gz
loongson/mirror stackstrap-0.1.2.tar.gz
loongson/mirror stackstrap-0.1.1.tar.gz
loongson/mirror stackstrap-0.1.0.tar.gz
loongson/mirror stackstrap-0.1.tar.gz