loongson/pypi: links for pyvadc

loongson/mirror pyvadc-0.0.7.tar.gz
loongson/mirror pyvadc-0.0.6.tar.gz
loongson/mirror pyvadc-0.0.5.tar.gz
loongson/mirror pyvadc-0.0.4.tar.gz
loongson/mirror pyvadc-0.0.3.tar.gz
loongson/mirror pyvadc-0.0.3a0.tar.gz
loongson/mirror pyvadc-0.0.1.tar.gz