ncsid: Guarantee MAC override

This allows us to runtime configure the mac address of the link while
still being able to have ncsid write an updated one.

Tested: On hardware and verified that the file gets written with the
MAC updated.

Change-Id: I1081ace0829f686e2e5bb34321433c5eb5b531dd
Signed-off-by: William A. Kennington III <wak@google.com>
1 file changed