meta-google: gbmc-bridge: Add package

This adds a machine local ethernet network which allows BMCs to
communicate with one another.

Change-Id: I5e0ace231af02d84f7678b8241b5ec71823e86af
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/networking/gbmc-bridge/-bmc-gbmcbr.netdev.in b/meta-google/recipes-google/networking/gbmc-bridge/-bmc-gbmcbr.netdev.in
new file mode 100644
index 0000000..a7e9133
--- /dev/null
+++ b/meta-google/recipes-google/networking/gbmc-bridge/-bmc-gbmcbr.netdev.in
@@ -0,0 +1,7 @@
+[NetDev]
+Name=gbmcbr
+Kind=bridge
+@MAC@
+@ADDR@
+[Bridge]
+STP=true