[PATCH] buildman: Allow using older versions of genboardscfg.py

[Simon Glass]

Older versions of this script don't support the -q flag. Since buildman
runs this script from when it starts, we may get the old version.

Fix this in two ways:

1. Use the version from the same tree as buildman is run from, if
available
2. Failing that, allow the -q flag to be missing

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

 tools/buildman/control.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

Applied to u-boot-dm, thanks!