[QNN EP] Optimize Session Creation Time

[chunghow-qti]

Description

qnn::utils::TwoDimensionTranspose makes the bottleneck during session creation, because there is a double for loop memcpy. If the weight is quite large, it will be very slow. And it's called a total of 3 times by ReshapeGemmFusion.

QnnModel::ComposeGraph → ReshapeGemmFusion::AddToModelBuilder → CreateOrValidateOnQnn → qnn::utils::TwoDimensionTranspose
QNNExecutionProvider::GetCapability → QNNExecutionProvider::GetSupportedNodes → ReshapeGemmFusion::IsSupported → CreateOrValidateOnQnn → qnn::utils::TwoDimensionTranspose (do QNN OP validation)
QNNExecutionProvider::GetCapability → QNNExecutionProvider::GetSupportedNodes → onnxruntime::qnn::ReshapeGemmFusion::IsSupported → CreateOrValidateOnQnn → qnn::utils::TwoDimensionTranspose (do QNN OP validation)

This change avoid heavy memcpy by using a dummy tensor when only shape validation is required.

Motivation and Context

Function	TwoDimensionTranspose_1	TwoDimensionTranspose_2	TwoDimensionTranspose_3	SessionCreationTime
original	88.39 ms	57.80 ms	53.09 m	9.41871 s
avoid 2 memcpy	51.52 ms	12.00 m	8.05 ms	9.05975 s