Allow the linux command fw_setenv to set ethaddr.

There's a guard in the command fw_setenv to prevent you from changing
the mac address, probably to prevent you from shooting yourself in the
foot.  We'll take the safety off that because shooting ourselves in the
foot is what we do best.

Change-Id: I3cbc05974413f215ff18981115798c7f8563b653
1 file changed