[QNN EP] Add ONNX ScatterElements support (#24811)
### Description
- Translate ONNX ScatterElements as QNN's ScatterElements Op
- Handle unsupported reduction value i.e., "min"
- Add unit tests to verify ScatterElements Op support on HTP
---------
Co-authored-by: Tirupathi Reddy T <tirupath@qti.qualcomm.com>
