onnxruntime

a9bf0bed - [QNN EP] Fix regression for MatMul with two quantized/dynamic uint16 inputs (#23419)

[QNN EP] Fix regression for MatMul with two quantized/dynamic uint16 inputs (#23419) ### Description - Fixes regression for MatMul with two quantized/dynamic uint16 inputs. We need to convert input[1] to uint8 to pass QNN validation. - Separates translation of `ONNX MatMul -> QNN MatMul` and `ONNX MatMul -> QNN FullyConnected` to separate functions to make the code more readable. ### Motivation and Context The following PR updated the handling of MatMul. The logic to handle MatMul with two non-const uint16 inputs was not ported from [simple_op_builder.cc](https://github.com/microsoft/onnxruntime/blob/c64fa18834f0651b7d62507a34d802874b099c29/onnxruntime/core/providers/qnn/builder/opbuilder/simple_op_builder.cc#L107) to the new [matmul_op_builder.cc](https://github.com/microsoft/onnxruntime/blob/c64fa18834f0651b7d62507a34d802874b099c29/onnxruntime/core/providers/qnn/builder/opbuilder/matmul_op_builder.cc#L57). https://github.com/microsoft/onnxruntime/pull/22639