Add 2nd MAC address for 2nd NIC

In somes systms, there are 2 MAC addresses for 2 NICs like mihawk. In
order to support system like Mihawk, add another FRU ETHERNET1 to get
the 2nd NIC's MAC address.

Signed-off-by: Alvin Wang <alvinwang@msn.com>
Change-Id: I7c01e346af41e080ab3498c5d32ecdeb3d825e90
diff --git a/writefru.yaml b/writefru.yaml
index 1673225..c620b59 100644
--- a/writefru.yaml
+++ b/writefru.yaml
@@ -14,3 +14,9 @@
         VINI,B1: MACAddress
         OPFR,B1: MACAddress
     xyz.openbmc_project.Inventory.Item.Ethernet:
+
+ETHERNET1:
+    xyz.openbmc_project.Inventory.Item.NetworkInterface:
+        VINI,B1: MACAddress
+        OPFR,B1: MACAddress
+    xyz.openbmc_project.Inventory.Item.Ethernet: