Add a short README describing how to setup patchtest's selftests for
oe-core.
(From OE-Core rev: afd4f3d9fa22dd0fbb0c30bbfc4a3de37d695c76)
Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>