Dump bazel product config in Soong

Bug: 187862880
Test: build/bazel/ci/bp2build.sh
Test: build/soong/tests/bp2build_bazel_test.sh
Change-Id: I24b09baad973e25bec4476e1ea4a7692b72b7d20
diff --git a/tests/lib.sh b/tests/lib.sh
index e561a3d..35ccea9 100644
--- a/tests/lib.sh
+++ b/tests/lib.sh
@@ -114,6 +114,7 @@
   symlink_directory prebuilts/jdk
 
   symlink_file WORKSPACE
+  symlink_file BUILD
   symlink_file tools/bazel
 }