Add enterprise disclosure to Keyguard screen

With this CL, a disclosure text is shown on the Keyguard screen when
a Device Owner is managing the device.

Bug: 32692748
Test: runtest --path frameworks/base/packages/SystemUI/tests

Change-Id: I7a48df7dc010c39b2db94fcd26b75313a7ceee08
diff --git a/packages/SystemUI/tests/AndroidManifest.xml b/packages/SystemUI/tests/AndroidManifest.xml
index 6e17cf4..b03189c 100644
--- a/packages/SystemUI/tests/AndroidManifest.xml
+++ b/packages/SystemUI/tests/AndroidManifest.xml
@@ -26,6 +26,7 @@
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
     <uses-permission android:name="android.permission.BIND_QUICK_SETTINGS_TILE" />
+    <uses-permission android:name="android.permission.ACCESS_KEYGUARD_SECURE_STORAGE" />
 
     <application>
         <uses-library android:name="android.test.runner" />