Check and fix device arguments

[noemifrisina]

From #1021

the default behaviour of @device_factory is that the name of the device is the name of the factory

Turns out that eg the zebra device has name as a required argument, coming before prefix. We should go through all devices and check that prefix is always before name, and that name is optional.

Acceptance Criteria

• Specific criteria that will be used to judge if the issue is fixed