meta-google: gbmc-bridge: Assign stable addresses from RAs

We want BMCs to be able to discover their machine prefix and assign a
stable IPv6 based on that prefix combined with the MAC of the BMC.

Change-Id: I67b8c56f50ff3a970175abcb81b429ceb1258b69
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-ensure-ra.service b/meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-ensure-ra.service
new file mode 100644
index 0000000..7f97cea
--- /dev/null
+++ b/meta-google/recipes-google/networking/gbmc-bridge/gbmc-br-ensure-ra.service
@@ -0,0 +1,5 @@
+[Service]
+ExecStart=/usr/libexec/gbmc-br-ensure-ra.sh
+
+[Install]
+WantedBy=multi-user.target