loongson/mirror: links for libleipzig

loongson/mirror libleipzig-1.3.tar.gz
loongson/mirror libleipzig-1.2.1.tar.gz
loongson/mirror libleipzig-1.2.tar.gz
loongson/mirror libleipzig-1.1.tar.gz
loongson/mirror libleipzig-1.0.tar.gz