mroute routers in the stats segment

Change-Id: I798e4fb6470ae9e763f8de1c290ff0fc3c0b7f9e
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/mfib/mfib_entry.c b/src/vnet/mfib/mfib_entry.c
index a88f375..7427334 100644
--- a/src/vnet/mfib/mfib_entry.c
+++ b/src/vnet/mfib/mfib_entry.c
@@ -1106,6 +1106,16 @@
     pool_put(mfib_entry_pool, mfib_entry);
 }
 
+u32
+mfib_entry_get_stats_index (fib_node_index_t fib_entry_index)
+{
+    mfib_entry_t *mfib_entry;
+
+    mfib_entry = mfib_entry_get(fib_entry_index);
+
+    return (mfib_entry->mfe_rep.dpoi_index);
+}
+
 /*
  * mfib_entry_back_walk_notify
  *