sudo is used to run ribchesterctl to install a bundle on the target,
but it is not used to run ribchesterctl to install a bundle on the
simulator. Let's change that.

Change a call to ribchesterctl instead of ribchester on the fly.

Apertis: https://phabricator.apertis.org/T3556



Signed-off-by: Frédéric Dalleau <frederic.dalleau@collabora.com>
Reviewed-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Differential Revision: https://phabricator.apertis.org/D6200