Test setting CPU and NPU governor and frequency

[mcm001]

Dug up this script: https://github.com/leafqycc/rknn-multi-threaded/blob/nosigmoid/performance.sh We should try messing with these parameters and seeing impact on FPS and latency and things

[srimanachanta]

Are you referring to a default over clock on the opi image?

[mcm001]

No, I want someone to characterize their impact