loongson/pypi: links for vdst-toolbox

loongson/mirror vdst-toolbox-1.0.4.tar.gz
loongson/mirror vdst-toolbox-1.0.3.tar.gz
loongson/mirror vdst-toolbox-1.0.2.tar.gz
loongson/mirror vdst-toolbox-1.0.1.tar.gz