disabled protected broadcast

bug: 23192492
Change-Id: Id4ad517a813d3dc5cd944cbc37f558cc40b338d9
diff --git a/tests/expectations/knownfailures.txt b/tests/expectations/knownfailures.txt
index 4c599c0..2cb99c4 100644
--- a/tests/expectations/knownfailures.txt
+++ b/tests/expectations/knownfailures.txt
@@ -353,5 +353,12 @@
     "android.telecom.cts.OutgoingCallTest#testStartCallWithSpeakerphoneNotProvided_SpeakerphoneOffByDefault"
   ],
   bug: 24067587
+},
+{
+  description: "protected broadcast not working",
+  names: [
+   "android.permission2.cts.ProtectedBroadcastsTest#testSendProtectedBroadcasts"
+  ],
+  bug: 23192492
 }
 ]