onnxruntime

Make partitioning utils QDQ aware so it does not break up QDQ node units (#19723)

### Description
<!-- Describe your changes. -->
If the EP handles QDQ node units, we need to make sure we do not split
those into different partitions.

Update the partitioning utils to be QDQ aware. If there are node units
we process the logical nodes they represent instead of individual nodes.
This ensure we process all nodes in a QDQ node unit at the same time so
that they are always in the same partition.

### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
Fix one of the issues in #19590

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Co-authored-by: Edward Chen <18449977+edgchen1@users.noreply.github.com>