loongson/pypi: links for rcssl

loongson/mirror rcssl-1.5.tar.gz
loongson/mirror rcssl-1.4.tar.gz
loongson/mirror rcssl-1.3.tar.gz
loongson/mirror rcssl-1.2.tar.gz
loongson/mirror rcssl-1.1.tar.gz
loongson/mirror rcssl-1.0.tar.gz