lisp: fix api_format reference

Type: fix
Ticket: VPP-1885

Change-Id: I474fffd4d36f439a19d475a8cb20171ca88274ec
Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
diff --git a/src/vat/api_format.c b/src/vat/api_format.c
index ea79b95..60cfa50 100644
--- a/src/vat/api_format.c
+++ b/src/vat/api_format.c
@@ -3079,9 +3079,9 @@
   node = vat_json_array_add (&vam->json_tree);
 
   vat_json_init_object (node);
-  deid = format (0, "%U", &format_lisp_eid_vat, mp->deid, 0, 0);
+  deid = format (0, "%U", format_lisp_eid_vat, &mp->deid, 0, 0);
 
-  seid = format (0, "%U", &format_lisp_eid_vat, mp->seid, 0, 0);
+  seid = format (0, "%U", format_lisp_eid_vat, &mp->seid, 0, 0);
 
   vec_add1 (deid, 0);
   vec_add1 (seid, 0);