AOD: Add wakelock for charging text while dozing

Also refactors the WakeLocks in SystemUI.

Bug: 30876804
Bug: 35850304
Test: runtest systemui
Change-Id: Ie17eedfd266deb3aa46dabd701bc784330b2e030
diff --git a/packages/SystemUI/tests/AndroidManifest.xml b/packages/SystemUI/tests/AndroidManifest.xml
index 41b75ff..612a54a 100644
--- a/packages/SystemUI/tests/AndroidManifest.xml
+++ b/packages/SystemUI/tests/AndroidManifest.xml
@@ -36,6 +36,7 @@
     <uses-permission android:name="android.permission.MANAGE_NETWORK_POLICY" />
     <uses-permission android:name="android.permission.REQUEST_NETWORK_SCORES" />
     <uses-permission android:name="android.permission.CONTROL_VPN" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
 
     <application>
         <uses-library android:name="android.test.runner" />