loongson/pypi: links for rnbip2

loongson/mirror RNBIP2-1.6.2.tar.gz
loongson/mirror RNBIP2-1.6.2-py3-none-any.whl
loongson/mirror RNBIP2-1.6.1.tar.gz
loongson/mirror RNBIP2-1.6.1-py3-none-any.whl