meta-google: avahi: Restrict settings to machine interface

We don't want this to run on external interfaces, so we limit avahi to
the internal interface only.

Google-Bug-Id: 166192295
Change-Id: Ifc056baab670d3c09aaba7256041777aa7bff6e3
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-connectivity/avahi/files/avahi-daemon.conf b/meta-google/recipes-connectivity/avahi/files/avahi-daemon.conf
new file mode 100644
index 0000000..9688ffb
--- /dev/null
+++ b/meta-google/recipes-connectivity/avahi/files/avahi-daemon.conf
@@ -0,0 +1,8 @@
+[server]
+allow-interfaces=mgmt
+
+[publish]
+disable-user-service-publishing=yes
+add-service-cookie=yes
+publish-hinfo=no
+publish-workstation=no