Missing x-auth-token header in Configure the south bound protocol

[manucarrace]

In http://fiware-iot-stack.readthedocs.io/en/release-v4.1/device_api/index.html#configure-the-south-bound-protocol there is no x-auth-token header.

I know this is not necesary from the point of view of the component, but from the pont of view of the platform or from the point of view of an integrator it would be nice to know that the x-auth-header is needed to provision a Configuration Group.

[AlvaroVega]

AFAIK iotagent is in charge of get token and use x-auth-token when device is configured with a trust id.