meta-google: recipes-google: networking: gbmc-sslh: Import from gBMC

Initial recipes-google/networking gbmc-sslh code from gBMC.

Google-Bug-Id: 179617830
Upstream: 8ac594bdf054082ca6dbe35c4345759fe4c31669
Change-Id: I9d7cdcad8a816dd878cdbb2e30272ac7f223d49e
Signed-off-by: Willy Tu <wltu@google.com>
diff --git a/meta-google/recipes-google/networking/files/sslh.socket b/meta-google/recipes-google/networking/files/sslh.socket
new file mode 100644
index 0000000..2540e59
--- /dev/null
+++ b/meta-google/recipes-google/networking/files/sslh.socket
@@ -0,0 +1,8 @@
+[Unit]
+Before=sslh.service
+
+[Socket]
+ListenStream=3967
+
+[Install]
+WantedBy=sockets.target