loongson/pypi: links for pbcmd

loongson/mirror pbcmd-7.1.tar.gz
loongson/mirror pbcmd-6.0.tar.gz
loongson/mirror pbcmd-5.1.tar.gz
loongson/mirror pbcmd-5.0.tar.gz
loongson/mirror pbcmd-0.3.8.tar.gz
loongson/mirror pbcmd-0.3.7.tar.gz
loongson/mirror pbcmd-0.3.6.tar.gz
loongson/mirror pbcmd-0.3.5.tar.gz
loongson/mirror pbcmd-0.3.2.tar.gz
loongson/mirror pbcmd-0.3.1.tar.gz
loongson/mirror pbcmd-0.3.tar.gz
loongson/mirror pbcmd-0.2.tar.gz
loongson/mirror pbcmd-0.1.tar.gz