Use "except-idle" whitelist for force-app-standby

Bug: 71911050
Test: Manual test with:
- dumpsys alarm  | grep 'Whitelist appids'
- dumpsys deviceidle except-idle-whitelist +com.android.chrome
- dumpsys deviceidle except-idle-whitelist +com.google.android.dialer
- dumpsys deviceidle except-idle-whitelist reset

Change-Id: I6d5d8c350bad53a22adf247eb82a0e7f0d664c19
diff --git a/services/core/java/com/android/server/ForceAppStandbyTracker.java b/services/core/java/com/android/server/ForceAppStandbyTracker.java
index 8776f3a..a75a367 100644
--- a/services/core/java/com/android/server/ForceAppStandbyTracker.java
+++ b/services/core/java/com/android/server/ForceAppStandbyTracker.java
@@ -98,6 +98,9 @@
     @GuardedBy("mLock")
     final SparseBooleanArray mForegroundUids = new SparseBooleanArray();
 
+    /**
+     * System except-idle + user whitelist in the device idle controller.
+     */
     @GuardedBy("mLock")
     private int[] mPowerWhitelistedAllAppIds = new int[0];