Partial Revert "powerhint: remove powerhint.json for separating configs"

Add A0/A1 config back

Test: build
Bug: 215655510
Change-Id: Ied6e98e39481775d17efa8c3741a99eaf3fab2b8
(cherry picked from commit 4a00d5296655a7fbf4a34f0108edff758043057a)
Merged-In: Ied6e98e39481775d17efa8c3741a99eaf3fab2b8
3 files changed