Set sepolicy for vmnic in AVF

Bug: 340376951
Test: Presubmit
Change-Id: I5f48ff4a459805de2f74d160c1b61473c6de0466
diff --git a/private/service.te b/private/service.te
index d777e53..1fb4d1d 100644
--- a/private/service.te
+++ b/private/service.te
@@ -30,6 +30,9 @@
 is_flag_enabled(RELEASE_AVF_ENABLE_LLPVM_CHANGES, `
     type virtualization_maintenance_service, service_manager_type;
 ')
+is_flag_enabled(RELEASE_AVF_ENABLE_NETWORK, `
+    type vmnic_service, service_manager_type;
+')
 
 type uce_service,                   service_manager_type;
 type wearable_sensing_service,      app_api_service, system_server_service, service_manager_type;