loongson/pypi: links for kfreader-cffi

loongson/mirror kfreader-cffi-0.2.4.tar.gz
loongson/mirror kfreader-cffi-0.2.3.tar.gz
loongson/mirror kfreader-cffi-0.2.2.tar.gz
loongson/mirror kfreader-cffi-0.2.1.tar.gz