msm: npu: Limit maximum power level based on fuse register setting

On sdmmagpie, NPU's maximum frequency needs to be limited based
on fuse register setting. In addition, power level implementation
needs to be refactored to reflect the actual power level for each
set of frequency settings.

Change-Id: I5315121f9984ee3ef9f310fc391b3fbcf0eaa83e
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>