loongson/pypi: links for ngsutils

loongson/mirror ngsutils-0.5.9.tar.gz
loongson/mirror ngsutils-0.5.7.tar.gz
loongson/mirror ngsutils-0.5.5.tar.gz
loongson/mirror ngsutils-0.5.4.tar.gz
loongson/mirror ngsutils-0.5.3b.tar.gz
loongson/mirror ngsutils-0.5.3a.tar.gz
loongson/mirror ngsutils-0.5.1a.tar.gz