Add protobuf definition for METADATA files.

Test: m droid

Change-Id: I48aa576bb97bf5ae9e61bc29cea8b0e9b4232cdd
diff --git a/compliance/project_metadata_proto/Android.bp b/compliance/project_metadata_proto/Android.bp
new file mode 100644
index 0000000..56e76e7
--- /dev/null
+++ b/compliance/project_metadata_proto/Android.bp
@@ -0,0 +1,27 @@
+// Copyright 2021 Google Inc. All rights reserved.
+//
+// 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"],
+}
+
+bootstrap_go_package {
+    name: "project_metadata_proto",
+    pkgPath: "android/soong/compliance/project_metadata_proto",
+    srcs: ["project_metadata.pb.go"],
+    deps: [
+        "golang-protobuf-reflect-protoreflect",
+        "golang-protobuf-runtime-protoimpl",
+    ],
+}