Add a requirements.txt file with the Python modules needed for Patchtest
to run.
(From OE-Core rev: 2fd953ac5dd86d3045a6af240d61c6e36c62d133)
Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>