loongson/pypi: links for pybfd3

loongson/mirror pybfd3-0.1.5.tar.gz
loongson/mirror pybfd3-0.1.4.tar.gz
loongson/mirror pybfd3-0.1.3.tar.gz
loongson/mirror pybfd3-0.1.2.tar.gz
loongson/mirror pybfd3-0.1.1.tar.gz