The board-files are specific to the target and device. Hence
they need to be set as nonshared. Otherwise they do not show
up on the package repository. This causes problems for
imagebuilder, if it needs to build a image for a specific
device that hasn't had the time to have get its boardfile
upstream.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
d38789b559