loongson/pypi: links for medialog-portlet-sitemap

loongson/mirror medialog.portlet.sitemap-4.0a2.tar.gz
loongson/mirror medialog.portlet.sitemap-1.0a2.tar.gz
loongson/mirror medialog.portlet.sitemap-1.0a1.tar.gz
loongson/mirror medialog.portlet.sitemap-1.0alpha.tar.gz