[FIX] point_of_sale: Stop Odoo service during a checkout

Actually when we link a DB and the iot need checkout a
specific version of Odoo, the service odoo in the iot
is still active.

This can disrupt the checkout and make the box unusable.

So now we stop the odoo service before the checkout.

closes odoo#150190

X-original-commit: 3e6700c
Signed-off-by: Quentin Lejeune (qle) <qle@odoo.com>
Signed-off-by: Yaroslav Soroko (yaso) <yaso@odoo.com>

addons/point_of_sale/tools/posbox/configuration/posbox_update.sh

@@ -3,6 +3,7 @@
 sudo mount -o remount,rw /
 
 sudo service led-status stop
+sudo service odoo stop
 
 cd /home/pi/odoo
 localbranch=$(git symbolic-ref -q --short HEAD)