loongson/mirror: links for stxnext-pdb

loongson/mirror stxnext.pdb-0.2.1.tar.gz
loongson/mirror stxnext.pdb-0.2.0.tar.gz
loongson/mirror stxnext.pdb-0.2.0-py2.4.egg
loongson/mirror stxnext.pdb-0.1.2.tar.gz
loongson/mirror stxnext.pdb-0.1.2-py2.4.egg
loongson/mirror stxnext.pdb-0.1.1.tar.gz
loongson/mirror stxnext.pdb-0.1.1-py2.4.egg
loongson/mirror stxnext.pdb-0.1.0-py2.4.egg