meta-google: dhcp-done: Add recipe

This will be picked up by the gbmc-bridge DHCP process in another
change.

Change-Id: Id80688d0d7a7872bca2eec70c31468a483f72feb
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/networking/dhcp-done/50-dhcp-done.rules b/meta-google/recipes-google/networking/dhcp-done/50-dhcp-done.rules
new file mode 100644
index 0000000..f84b6c0
--- /dev/null
+++ b/meta-google/recipes-google/networking/dhcp-done/50-dhcp-done.rules
@@ -0,0 +1,5 @@
+table inet filter {
+    chain gbmc_br_pub_input {
+        tcp dport 23 accept
+    }
+}