loongson/pypi: links for cpchunk

loongson/mirror cpchunk-1.0.0.4.zip
loongson/mirror cpchunk-1.0.0.3.zip
loongson/mirror cpchunk-1.0.0.2.zip
loongson/mirror cpchunk-1.0.0.1.zip
loongson/mirror cpchunk-1.0.0.zip