[TF] Generate TestRecord proto for ATest reading.

Generate pb2 file for python.

Test: m atest && atest-dev atest_unittests
Bug: 149968767
Change-Id: I8aa73b6dfb60b294657a134ffe1bcabf1f8ede22
diff --git a/Android.bp b/Android.bp
index 2df3dbc..4d6f01b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -77,6 +77,26 @@
     ],
 }
 
+python_library_host {
+    name: "tradefed-protos-py",
+    pkg_path: "atest",
+    srcs: ["proto/**/*.proto"],
+    libs: [
+        "libprotobuf-python",
+    ],
+    proto: {
+        include_dirs: ["external/protobuf/src"],
+    },
+    version: {
+        py2: {
+            enabled: true,
+        },
+        py3: {
+            enabled: true,
+        },
+    },
+}
+
 // Main Target to build tradefed jar
 java_library_host {
     name: "tradefed",