[FIX] hw_drivers: Avoid duplicates identifiers in devices

Before this commit the identifier integrate the BUS and port to identifiate USB devices
Now we check if there are duplicates devices before increment the identifier

For other loop we add identifier in the iot_device object

task: 1963500

closes odoo/odoo#32737

Signed-off-by: Quentin Lejeune (qle) <qle@odoo.com>