Introducing vm_tethering_service as system_server_service

Bug: 340376953
Test: Presubmit
Change-Id: Iab1b348c8c593ea6d9615b6f80cddc8b78bed1fa
diff --git a/private/service.te b/private/service.te
index 1fb4d1d..6c55ed4 100644
--- a/private/service.te
+++ b/private/service.te
@@ -31,7 +31,8 @@
     type virtualization_maintenance_service, service_manager_type;
 ')
 is_flag_enabled(RELEASE_AVF_ENABLE_NETWORK, `
-    type vmnic_service, service_manager_type;
+    type vm_tethering_service, system_server_service, service_manager_type;
+    type vmnic_service,        service_manager_type;
 ')
 
 type uce_service,                   service_manager_type;