Add nvidia profile manager

This implements and API for apps to interface with NvCPL and by
extension the PowerHAL.

Reverse engineered from the Shield Experience 9.1.1 update then cleaned
up to match Android standards.

Co-authored-by: nift4 <nift4@protonmail.com>
Change-Id: I774ac62c8867151f21712cfeee25f96a591415ad