loongson/mirror: links for primelibpy

loongson/mirror primelibpy-2.2.tar.gz
loongson/mirror primelibpy-2.1.tar.gz
loongson/mirror primelibpy-1.5.tar.gz
loongson/mirror primelibpy-1.4.tar.gz
loongson/mirror primelibpy-1.3.tar.gz