Add sepolicy for RollbackManagerService.

Bug: 112431924
Test: atest RollbackTest
Change-Id: I30453a8d5352a31e3e6af6c37a20b5473904d356
diff --git a/private/service_contexts b/private/service_contexts
index 51980ad..85e41ec 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -148,6 +148,7 @@
 recovery                                  u:object_r:recovery_service:s0
 restrictions                              u:object_r:restrictions_service:s0
 role                                      u:object_r:role_service:s0
+rollback                                  u:object_r:rollback_service:s0
 rttmanager                                u:object_r:rttmanager_service:s0
 runtime                                   u:object_r:runtime_service:s0
 samplingprofiler                          u:object_r:samplingprofiler_service:s0