Add plumbing for ADPF Power Efficiency hint

These patches introduce a new power efficiency mode for hint sessions
to the public API, and internally expose a new setMode API for hint
sessions that resembles the setMode API for iPower, to control
different session operating modes.

This set of patches:
 - Updates the PowerHAL AIDL to version 5, and updates relevant bp files
 - Exposes new setPreferPowerEfficiency(bool enabled) method from the
 SDK and NDK
 - Exposes new setMode(int mode, bool enabled) method from PowerHAL AIDL
 and HintManagerService
 - Adds support for new setMode call in PowerHAL

Bug: b/288117936
Test: atest cts/tests/tests/os/src/android/os/cts/PerformanceHintManagerTest.java
Test: atest HintManagerServiceTest
Change-Id: Ia1349e1bd8c4c85276788892b69897b5ef267c03