loongson/mirror: links for sngp

loongson/mirror SNGP-0.7.tar.gz
loongson/mirror SNGP-0.6.tar.gz
loongson/mirror SNGP-0.5.tar.gz
loongson/mirror SNGP-0.4.tar.gz
loongson/mirror SNGP-0.3.tar.gz
loongson/mirror SNGP-0.2.tar.gz
loongson/mirror SNGP-0.1.tar.gz