CtsVerifier: add RECEIVER_EXPORTED

Required for U+
https://developer.android.com/reference/android/content/Context#registerReceiver(android.content.BroadcastReceiver,%20android.content.IntentFilter)

Bug: 289294143
Test: mmm; mannual;
Change-Id: Ie63f6a5e32bb7d630c15d0c0d0ce2919217612b0
1 file changed