Provide board name for ostree commit

Need to provide the board name for updated apertis-ostree-commit recipe
to get a correct name for branch.

Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Reviewed-by: Emanuele Aina <emanuele.aina@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D7391