loongson/pypi: links for pyinstaller-setuptools

loongson/mirror pyinstaller_setuptools-2019.3.tar.gz
loongson/mirror pyinstaller_setuptools-2019.3-py3-none-any.whl
loongson/mirror pyinstaller_setuptools-2019.2.tar.gz
loongson/mirror pyinstaller_setuptools-2019.2-py3-none-any.whl
loongson/mirror pyinstaller_setuptools-2019.1.tar.gz
loongson/mirror pyinstaller_setuptools-2019.1-py3-none-any.whl
loongson/mirror pyinstaller_setuptools-2019.0.tar.gz
loongson/mirror pyinstaller_setuptools-2019.0-py3-none-any.whl