[ONNX][RELAX] replace topi.split with relax.op.split in the onnx frontend#17642

Hzfengsy merged 4 commits intoapache:mainapache/tvm:mainfrom

PatrikPerssonInceptron:feature/tir_split_to_relax_splitPatrikPerssonInceptron/tvm:feature/tir_split_to_relax_splitCopy head branch name to clipboard