Update the .bp file and annotations of ART services.

- Change the SDK version to system_server_current.
- Change the annotation to @SystemApi(client = SYSTEM_SERVER).

Bug: 177273468
Test: (on aosp-master-art) banchan com.android.art x86_64 && m
Ignore-AOSP-first: Merge Conflicts
Change-Id: Ia6e72118689f84e49fcd6d8d0ae39569ca6f590b
3 files changed