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
diff --git a/meta-witherspoon/conf/machine/mihawk.conf b/meta-witherspoon/conf/machine/mihawk.conf
index 08d9ab7..53a9f5b 100644
--- a/meta-witherspoon/conf/machine/mihawk.conf
+++ b/meta-witherspoon/conf/machine/mihawk.conf
@@ -12,6 +12,7 @@
 require conf/machine/include/obmc-bsp-common.inc
 require conf/machine/include/openpower.inc
 require conf/machine/include/p9.inc
+require conf/distro/include/phosphor-aspeednic-use-mac2.inc
 
 PHOSPHOR_MRW_LICENSE = "Apache-2.0"
 PHOSPHOR_MRW_LIC_FILES_CHKSUM = "file://LICENSE;md5=86d3f3a95c324c9479bd8986968f4327"