[ONNX FE][Transformation] GroupQueryAttention refine work for NPU static shape design

[bopeng1234]

initial refine work for ONNX GQA, insert new kv into the past kv, valid data is in front of the buffer as MLAS does

Details:

The old logic for NPU static shape KV design is:

The valid KV is in the end of the buffer.

But, refer to MLAS implementation, for static shape KV, the valid data is in the front. onnxruntime gqa

So, this PR applies the changes accordingly.

ScatterUpdate the current KV into the buffer, keep valid data in the front as below shown.

Tickets:

• CVS-179655

AI Assistance:

• AI assistance used: yes
• AI was used for new op selection and human valid it with build and test