[5868890][ONNX][Autocast] Fix: failure when checking input shape with unknown dimension#859

gcunhase merged 4 commits intoNVIDIA:mainNVIDIA/Model-Optimizer:mainfrom

gcunhase:dev/gcunhasergio/5868890_autocast_input_shape_dyngcunhase/TensorRT-Model-Optimizer:dev/gcunhasergio/5868890_autocast_input_shape_dynCopy head branch name to clipboard