Adjust testapis/permissions for CTS tests

Test: cts
Bug: 127341023
Change-Id: Ice19dc337a06a3f20edca583ecbe5ef3148fd96d
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 3a9a993..314b74a 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -154,6 +154,7 @@
     <uses-permission android:name="android.permission.STATUS_BAR_SERVICE" />
     <!-- Permission needed to rename bugreport notifications (so they're not shown as Shell) -->
     <uses-permission android:name="android.permission.SUBSTITUTE_NOTIFICATION_APP_NAME" />
+    <uses-permission android:name="android.permission.REQUEST_NOTIFICATION_ASSISTANT_SERVICE" />
     <!-- Permission needed to hold a wakelock in dumpstate.cpp (drop_root_user()) -->
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <!-- Permission needed to enable/disable overlays -->