[FIX] hw_drivers: Kill MPD server on start
[FIX] hw_drivers: Kill MPD server on start

The MPD server was not correctly killed when the IoTBox started without
six payment terminal configured. A warning was displayed.

closes odoo/odoo#36415

Signed-off-by: Quentin Lejeune (qle) <5d1c09880ce30fdcf63039932dac0c183ef0bdc7@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo