[Sepolicy] Change sepolicy name back to formal name.

The feature is public, we can change the fake name to formal name.

Bug: 185550380
Test: build pass and can run service correctly
Merged-In: I956d916077f9a71cdf1df2f0be6f83e6f1f30a98

Change-Id: Idc29942eee6c2fd7658beb69ba62a70397176a66
diff --git a/private/service_contexts b/private/service_contexts
index b410b18..c020a04 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -275,7 +275,7 @@
 timezone                                  u:object_r:timezone_service:s0
 thermalservice                            u:object_r:thermal_service:s0
 tracing.proxy                             u:object_r:tracingproxy_service:s0
-transformer                               u:object_r:transformer_service:s0
+translation                               u:object_r:translation_service:s0
 trust                                     u:object_r:trust_service:s0
 tv_input                                  u:object_r:tv_input_service:s0
 tv_tuner_resource_mgr                     u:object_r:tv_tuner_resource_mgr_service:s0