meta-google: gbmc-systemd-config: Enable packet forwarding

This allows gBMCs to route packets, needed for routing packets to the
management netowrk.

Change-Id: I71f59eeb12607aa9c9d64687fb983938d5d69413
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/systemd/files/40-gbmc-forward.conf b/meta-google/recipes-google/systemd/files/40-gbmc-forward.conf
new file mode 100644
index 0000000..9f8d1eb
--- /dev/null
+++ b/meta-google/recipes-google/systemd/files/40-gbmc-forward.conf
@@ -0,0 +1,5 @@
+net.ipv4.ip_forward=1
+net.ipv4.conf.default.forwarding=1
+net.ipv4.conf.all.forwarding=1
+net.ipv6.conf.default.forwarding=1
+net.ipv6.conf.all.forwarding=1