Skip pkg/kernel/test/metadata_test on pkg bots.
Skip pkg/kernel/test/metadata_test on pkg bots.

This test needs platform.dill and can't run from SDK currently.

(Use correct path in the status file: without pkg/)

Bug:
Change-Id: I4e6e9ed2f713d51a68fe9f3caa59f65b6c0aaf04
Reviewed-on: https://dart-review.googlesource.com/11064
Reviewed-by: Vyacheslav Egorov <72c81f38df725d8f1832acb9b5bb99563fc2f1b9@google.com>

dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk