Add Rust target for VehicleHalProtos

In our project we integrate vehicle properties definition and reused some of the existing message types (`VehiclePropConfig` and `VehicleAreaConfig`), so we need to depend on a Rust target of the protos.

Bug: 346786677

Test: m
Change-Id: If99f1763e38a9f8bb0ac4dd9ba5e1bee22cc54a7

automotive/vehicle/aidl/impl/proto/Android.bp

@@ -106,3 +106,17 @@ cc_library_static {
         "-Wno-unused-parameter",
     ],
 }
+
+rust_protobuf {
+    name: "libvehicle_hal_property_protos",
+    crate_name: "vehicle_hal_property_protos",
+    protos: [":VehicleHalProtoFiles"],
+    source_stem: "vehicle_hal_property_protos",
+    host_supported: true,
+    vendor_available: true,
+    product_available: true,
+    exported_include_dirs: ["."],
+    proto_flags: [
+        "-I external/protobuf/src",
+    ],
+}