loongson/mirror: links for cddl-gen

loongson/mirror cddl-gen-0.3.1.tar.gz
loongson/mirror cddl_gen-0.3.1-py3-none-any.whl
loongson/mirror cddl-gen-0.3.0.tar.gz
loongson/mirror cddl_gen-0.3.0-py3-none-any.whl
loongson/mirror cddl-gen-0.2.0.tar.gz
loongson/mirror cddl-gen-0.1.0.zip