loongson/pypi: links for xmltramp2

loongson/mirror xmltramp2-3.1.1.tar.gz
loongson/mirror xmltramp2-3.1.tar.gz
loongson/mirror xmltramp2-3.0.10.tar.gz
loongson/mirror xmltramp2-3.0.9.tar.gz
loongson/mirror xmltramp2-3.0.8.tar.gz
loongson/mirror xmltramp2-3.0.7.tar.gz