Make scripts/update_payload available for other python modules

The new merge_ota tool will need this module to read/write OTA packages

Test: th
Bug: 227848550

Change-Id: Ibfe2fca65ffbaca939ea3f8ca924c9152e5e7540
diff --git a/scripts/Android.bp b/scripts/Android.bp
new file mode 100644
index 0000000..8a76203
--- /dev/null
+++ b/scripts/Android.bp
@@ -0,0 +1,44 @@
+// Copyright (C) 2022 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.
+
+//
+// Module-specific defaults.
+//
+// For module X, if we need to build it both as a library and an executable:
+//  - A default rule `releasetools_X_defaults` is created, which lists `srcs`, `libs` and
+//    `required` properties.
+//  - `python_library_host` and `python_binary_host` are created by listing
+//    `releasetools_X_defaults` in their defaults.
+//
+
+python_library_host {
+    name: "update_payload",
+
+    srcs: [
+        "update_payload/__init__.py",
+        "update_payload/payload.py",
+        "update_payload/checker.py",
+        "update_payload/applier.py",
+        "update_payload/common.py",
+        "update_payload/error.py",
+        "update_payload/histogram.py",
+        "update_payload/format_utils.py",
+    ],
+    proto: {
+        canonical_path_from_root: false,
+    },
+    libs: [
+        "update_metadata-protos-python",
+    ],
+}