meta-ibm: Enable mac2 on mihawk platform

Since mihawk has share and dedicated two ports, so use two mac addresses.

Tested:Use ip a command to see two mac addresses

Signed-off-by: Ben Pai <Ben_Pai@wistron.com>
Change-Id: Ie4c5358622e7e0bab5fae363227b5852a2f6c3d7
1 file changed