loongson/pypi: links for libserial24

loongson/mirror LibSerial24-1.0.tar.gz
loongson/mirror LibSerial24-0.9.tar.gz
loongson/mirror LibSerial24-0.8.tar.gz
loongson/mirror LibSerial24-0.7.tar.gz
loongson/mirror LibSerial24-0.6.tar.gz