onnxruntime

[QNN EP] QNN SDK 2.28.2 (#22844)

### Description
- Updates pipelines to use QNN SDK 2.28.2.241116.
- Re-enable LayerNormalization unit tests that failed with accuracy
errors with the previous QNN SDK (2.28.0).
- Update QNN EP to no longer provide a dummy bias for LayerNorm if the
QNN SDK version is >= 2.28.0.


### Motivation and Context
Use the latest QNN SDK. This version improves inference latency for
certain customer models.