Add bp2build converter for rust_ffi_static

Test: go test
Change-Id: Ibf0bb2687073f8650da4ca27c1f57e68a93025d4
diff --git a/bp2build/Android.bp b/bp2build/Android.bp
index a93fb38..14e32ed 100644
--- a/bp2build/Android.bp
+++ b/bp2build/Android.bp
@@ -89,6 +89,7 @@
         "python_library_conversion_test.go",
         "python_test_conversion_test.go",
         "rust_binary_conversion_test.go",
+        "rust_ffi_conversion_test.go",
         "rust_library_conversion_test.go",
         "rust_proc_macro_conversion_test.go",
         "rust_protobuf_conversion_test.go",