loongson/pypi: links for bpt

loongson/mirror bpt-0.5.2.tar.gz
loongson/mirror bpt-0.5.1.tar.gz
loongson/mirror bpt-0.5.tar.gz
loongson/mirror bpt-0.4a.tar.gz
loongson/mirror bpt-0.3.tar.gz
loongson/mirror bpt-0.2a.tar.gz