Sepolicy changes for adding new system service for AdServices.

Test: build
Bug: 216375107
Change-Id: I238ac3f8966ce05768aef17bd05217a9772cf2f3
diff --git a/private/service_contexts b/private/service_contexts
index cac6ea8..6a80cfb 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -75,6 +75,7 @@
 activity                                  u:object_r:activity_service:s0
 activity_task                             u:object_r:activity_task_service:s0
 adb                                       u:object_r:adb_service:s0
+adservices_manager                        u:object_r:adservices_manager_service:s0
 aidl_lazy_test_1                          u:object_r:aidl_lazy_test_service:s0
 aidl_lazy_test_2                          u:object_r:aidl_lazy_test_service:s0
 aidl_lazy_cb_test                         u:object_r:aidl_lazy_test_service:s0