Pulling in BluetoothProtoEnums into the apex

Bug: 211851706
Test: Compile against apk and apex
Change-Id: I51d9fc2c8a4bf4f351dcc4d907f5eb220ee6b53e

core/proto/android/server/Android.bp

@@ -0,0 +1,28 @@
+//
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+filegroup {
+  name: "srcs_bluetooth_manager_service_proto",
+  srcs: [
+      "bluetooth_manager_service.proto",
+  ],
+  visibility: ["//packages/modules/Bluetooth:__subpackages__"],
+}
+