loongson/pypi: links for mtbconverter

loongson/mirror mtbconverter-0.1.3.tar.gz
loongson/mirror mtbconverter-0.1.2.tar.gz
loongson/mirror mtbconverter-0.1.2.dev0.tar.gz
loongson/mirror mtbconverter-0.1.1.tar.gz
loongson/mirror mtbconverter-0.1.tar.gz