vlib: add missing file template descriptions

Add descriptions to clib_file_t template structures so that
sockets can be identified via the 'show unix file' cli command.

Type: fix

Change-Id: Ibf82d55aa6c7b1126bd252b76d0dc8b7076f5046
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
diff --git a/extras/deprecated/netmap/netmap.c b/extras/deprecated/netmap/netmap.c
index 03d9621..7cab6bb 100644
--- a/extras/deprecated/netmap/netmap.c
+++ b/extras/deprecated/netmap/netmap.c
@@ -194,6 +194,7 @@
     template.read_function = netmap_fd_read_ready;
     template.file_descriptor = nif->fd;
     template.private_data = nif->if_index;
+    template.description = format (0, "netmap socket");
     nif->clib_file_index = clib_file_add (&file_main, &template);
   }