Only display single line for title

When a malicious device admin app’s name includes
a bunch of CRLF characters, it will cause incorrect shows
and selection confusion in Settings Device admin apps listView.

Test: Built the apk and saw single line title.
Bug: 169936038
Change-Id: I98d9a93bfdc792017124dda52a59d25a6462079e

src/com/android/settings/applications/specialaccess/deviceadmin/DeviceAdminListPreferenceController.java

@@ -207,6 +207,7 @@ public class DeviceAdminListPreferenceController extends BasePreferenceControlle
             return true;
         });
         pref.setOnPreferenceChangeListener((preference, newValue) -> false);
+        pref.setSingleLineTitle(true);
     }
 
     /**