DO NOT MERGE: use 'expandattribute' for untrusted_app_visible_hwservice

Bug: 62658302
Test: Boot device and observe no new denials

Change-Id: If9a21610897b14a419f276289818127412c29c55
Signed-off-by: Sandeep Patil <sspatil@google.com>

private/app_neverallows.te

@@ -160,7 +160,7 @@ neverallow all_untrusted_apps {
   -hal_cas_hwservice
   -untrusted_app_visible_hwservice
 }:hwservice_manager find;
-neverallow untrusted_app_visible_hwservice unlabeled:service_manager list; #TODO: b/62658302
+
 # Make sure that the following services are never accessible by untrusted_apps
 neverallow all_untrusted_apps {
   default_android_hwservice

public/attributes

@@ -156,6 +156,7 @@ expandattribute vendor_executes_system_violators false;
 # attribute to be submitted to AOSP in order to maintain their
 # app-visibility.
 attribute untrusted_app_visible_hwservice;
+expandattribute untrusted_app_visible_hwservice false;
 
 # halserver domains that are accessible to untrusted applications.  These
 # domains are typically those hosting  hwservices attributed by the