loongson/pypi: links for mpxl

loongson/mirror mpxl-1.4-beta1.tar.gz
loongson/mirror mpxl-1.3.2.tar.gz
loongson/mirror mpxl-1.3.1.tar.gz
loongson/mirror mpxl-1.3.tar.gz
loongson/mirror mpxl-1.2.2.tar.gz
loongson/mirror mpxl-1.2.1.tar.gz
loongson/mirror mpxl-1.2.tar.gz
loongson/mirror mpxl-1.1.tar.gz
loongson/mirror mpxl-1.0.tar.gz
loongson/mirror mpxl-0.3.tar.gz
loongson/mirror mpxl-0.2.tar.gz