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: manual
Change-Id: Id006341b5ab0ae6fadd975d740d2fcf89f0636e4
diff --git a/compatibility_matrices/compatibility_matrix.9.xml b/compatibility_matrices/compatibility_matrix.9.xml
index 14b9210..ff716df 100644
--- a/compatibility_matrices/compatibility_matrix.9.xml
+++ b/compatibility_matrices/compatibility_matrix.9.xml
@@ -390,7 +390,7 @@
     </hal>
     <hal format="aidl" optional="true">
         <name>android.hardware.power</name>
-        <version>4</version>
+        <version>5</version>
         <interface>
             <name>IPower</name>
             <instance>default</instance>