Add update_engine_stable_service

This is the stable AIDL binder interface that update_engine exposes in
addition to update_engine_service.

Test: run update_engine
Bug: 160996544

Change-Id: I28ba11810844373d48c8c203f79e98150f932942
diff --git a/private/compat/30.0/30.0.ignore.cil b/private/compat/30.0/30.0.ignore.cil
index 44a6799..ae09f72 100644
--- a/private/compat/30.0/30.0.ignore.cil
+++ b/private/compat/30.0/30.0.ignore.cil
@@ -12,5 +12,6 @@
     profcollectd
     profcollectd_data_file
     profcollectd_exec
-    profcollectd_service))
+    profcollectd_service
+    update_engine_stable_service))
 
diff --git a/private/service_contexts b/private/service_contexts
index 254ab5f..ce75488 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -13,6 +13,7 @@
 aidl_lazy_test_2                          u:object_r:aidl_lazy_test_service:s0
 alarm                                     u:object_r:alarm_service:s0
 android.os.UpdateEngineService            u:object_r:update_engine_service:s0
+android.os.UpdateEngineStableService      u:object_r:update_engine_stable_service:s0
 android.security.identity                 u:object_r:credstore_service:s0
 android.security.keystore                 u:object_r:keystore_service:s0
 android.service.gatekeeper.IGateKeeperService    u:object_r:gatekeeper_service:s0