loongson/pypi: links for iscv

loongson/mirror ISCV-2.1.1.tar.gz
loongson/mirror ISCV-2.1.1-py3-none-any.whl
loongson/mirror ISCV-2.1.0.tar.gz
loongson/mirror ISCV-2.1.0-py3-none-any.whl
loongson/mirror ISCV-2.0.0.tar.gz
loongson/mirror ISCV-2.0.0-py3-none-any.whl
loongson/mirror ISCV-1.0.0.tar.gz
loongson/mirror ISCV-1.0.0-py3-none-any.whl