Add installer flag to MANAGE_NOTIFICATION_LISTENERS

This is needed for us to grant it to PermissionController

Test: presubmit
Change-Id: I1b22d0d7762a9a06f67c6a54651b70ac4c4ba2bb
diff --git a/tests/tests/permission2/res/raw/android_manifest.xml b/tests/tests/permission2/res/raw/android_manifest.xml
index a66d950..1d236df 100644
--- a/tests/tests/permission2/res/raw/android_manifest.xml
+++ b/tests/tests/permission2/res/raw/android_manifest.xml
@@ -4477,7 +4477,7 @@
     <!-- Allows enabling and disabling notification listeners.
         @hide -->
     <permission android:name="android.permission.MANAGE_NOTIFICATION_LISTENERS"
-                android:protectionLevel="signature" />
+                android:protectionLevel="signature|installer" />
 
     <!-- Allows notifications to be colorized
          <p>Not for use by third-party applications. @hide -->