* Add methods for setting hostname
In the same way it is done for setting MAC address, add methods for
setting hostname. The underlying network stack can then request this
to the local DNS through DHCP.
* Request hostname through DHCP
If hostname is provided, request it to local DNS through DHCP.
Duplicate status callbacks don't bring any value and can cause
memory leaks if caller calls for this function multiple times with
same status_cb. Also remove all the instances of the status_cb when
removing event listener.
Add license identifier to files which Arm owns the copyright to,
and contain either BSD-3 or Apache-2.0 licenses. This is to address
license errors raised by scancode analysis.
Guilherme Ricioli
Chris Swinchatt
jarlamsa
Arto Kinnunen
Harrison Mutai
Rajkumar Kanagaraj