google-usb-network: Support host/dev MAC input

Change-Id: Ic4c76a65b314f6a913d16a47ed84f9451dd052de
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/recipes-google/networking/google-usb-network/google-usb-dynamic.cpp b/recipes-google/networking/google-usb-network/google-usb-dynamic.cpp
index 2d83e00..b7eba25 100644
--- a/recipes-google/networking/google-usb-network/google-usb-dynamic.cpp
+++ b/recipes-google/networking/google-usb-network/google-usb-dynamic.cpp
@@ -175,6 +175,8 @@
     add("--bind-device", "BindDevice", /*required=*/true);
     add("--product-name", "ProductName", /*required=*/false);
     add("--dev-type", "DevType", /*required=*/false);
+    add("--dev-mac", "DevMac", /*required=*/false);
+    add("--host-mac", "HostMac", /*required=*/false);
 
     auto pn = props.find("IFName");
     std::string ifname;