[PATCH v3 18/29] patman: Add a test for PatchStream tags

[Simon Glass]

The current functional tests run most of patman. Add a smaller test that
just checks tag handling with the PatchStream class.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v1)

 tools/patman/func_test.py   | 26 +++++++++++++++++++++-----
 tools/patman/patchstream.py | 23 +++++++++++++++++++++++
 2 files changed, 44 insertions(+), 5 deletions(-)

Applied to u-boot-dm, thanks!