tcp: avoid initializing counters multiple times

Type: fix

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: Ia98dae5fdde16426d5457742aff0a1b04db4d034
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index 962324e..2362a8b 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -240,6 +240,9 @@
   /** Flag that indicates if stack is on or off */
   u8 is_enabled;
 
+  /** Set if counters on stats segment initialized */
+  u8 counters_init;
+
   /** Flag that indicates if v4 punting is enabled */
   u8 punt_unknown4;