Add SELinux policy changes for rkpd

This is a part of changes to bring up Remote Key Provisioning Daemon
module. See packages/modules/RemoteKeyProvisioning for more info.

Change-Id: Iae4e98176491637acb03e2e09b9d8dbc269be616
Test: atest rkpd_client_test
diff --git a/private/service_contexts b/private/service_contexts
index 63f3ff7..d86bf47 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -298,6 +298,8 @@
 resolver                                  u:object_r:resolver_service:s0
 resources                                 u:object_r:resources_manager_service:s0
 restrictions                              u:object_r:restrictions_service:s0
+rkpd.registrar                            u:object_r:rkpd_registrar_service:s0
+rkpd.refresh                              u:object_r:rkpd_refresh_service:s0
 role                                      u:object_r:role_service:s0
 rollback                                  u:object_r:rollback_service:s0
 rttmanager                                u:object_r:rttmanager_service:s0