loongson/mirror: links for smtinker

loongson/mirror SMTinker-1.6.tar.gz
loongson/mirror SMTinker-1.5.tar.gz
loongson/mirror SMTinker-1.4.tar.gz
loongson/mirror SMTinker-1.3.tar.gz
loongson/mirror SMTinker-1.2.tar.gz
loongson/mirror SMTinker-1.1.tar.gz