Power: add a DISPLAY_CHANGE mode

Bug: 298150450
Test: build pass
Change-Id: Ibdfb5bc071c17809bc35e892e8450406b2acdb70

power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/Mode.aidl

@@ -51,4 +51,5 @@ enum Mode {
   CAMERA_STREAMING_HIGH,
   GAME,
   GAME_LOADING,
+  DISPLAY_CHANGE,
 }

power/aidl/android/hardware/power/Mode.aidl

@@ -133,11 +133,6 @@ enum Mode {
      */
     DISPLAY_INACTIVE,
 
-    /**
-     * Below hints are currently not sent in Android framework but OEM might choose to
-     * implement for power/perf optimizations.
-     */
-
     /**
      * This mode indicates that low latency audio is active.
      */
@@ -172,4 +167,10 @@ enum Mode {
      * This mode indicates that the user is waiting for loading in a game.
      */
     GAME_LOADING,
+
+    /**
+     * This mode indicates that the display layout is changing due to rotation
+     * or switching between inner and outer panels.
+     */
+    DISPLAY_CHANGE,
 }