Add rust bp2build tests to soong tests

Test: m nothing
Change-Id: I19a11cc2055725bfa5dfea5dd5215c18ffec3a21
diff --git a/bp2build/Android.bp b/bp2build/Android.bp
index c104833..6b50a2e 100644
--- a/bp2build/Android.bp
+++ b/bp2build/Android.bp
@@ -32,6 +32,7 @@
         "soong-genrule",
         "soong-linkerconfig",
         "soong-python",
+        "soong-rust",
         "soong-sh",
         "soong-shared",
         "soong-starlark-format",
@@ -82,6 +83,10 @@
         "python_binary_conversion_test.go",
         "python_library_conversion_test.go",
         "python_test_conversion_test.go",
+        "rust_binary_conversion_test.go",
+        "rust_library_conversion_test.go",
+        "rust_proc_macro_conversion_test.go",
+        "rust_protobuf_conversion_test.go",
         "sh_conversion_test.go",
         "sh_test_conversion_test.go",
         "soong_config_module_type_conversion_test.go",