onnxruntime

bdd6b00c - set zero point to 0 if all value are 0.0 (#12470)

set zero point to 0 if all value are 0.0 (#12470) * set zero point to 0 if all value are 0.0 * fix bug: lower version of numpy.finfo doesn't have smallest_subnormal * check scale to make sure it is not subnormal