Upgrade NPU driver to 0.9.6

[Pelochus]

Newest driver from Rockchip implemented support for running LLMs through an API of theirs (or better said, proper support, previous drivers can only run the smallest models). I think it is very interesting to implement this new driver version for accelerating LLMs on Pis.

I'm not very used to building the Linux kernel, but if I can help somehow (testing, for example) let me know.

Some useful links here:

• Fix some problems while building the kernel: https://github.com/airockchip/rknn-llm/issues/16#issuecomment-2041474027
• The driver: https://github.com/airockchip/rknn-llm/tree/main/rknpu-driver
• Demo: https://www.reddit.com/r/RockchipNPU/comments/1c8176q/some_thoughts_on_the_rkllm_sdk/

[Pelochus]

Opened PR, so I'm closing this for now

https://github.com/armbian/linux-rockchip/pull/170