loongson/mirror: links for mountainsort4

loongson/mirror mountainsort4-1.0.7.tar.gz
loongson/mirror mountainsort4-1.0.6.tar.gz
loongson/mirror mountainsort4-1.0.5.tar.gz
loongson/mirror mountainsort4-1.0.4.tar.gz
loongson/mirror mountainsort4-1.0.3.tar.gz
loongson/mirror mountainsort4-1.0.2.tar.gz
loongson/mirror mountainsort4-1.0.0.tar.gz