Fix gpe dp args to allow for 32 bit bridge domain ids, VPP-690

Change-Id: I4e3df197eed33acbceaff495279def8716773303
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/lisp-gpe/lisp_gpe.h b/src/vnet/lisp-gpe/lisp_gpe.h
index e1e5620..b3821ac 100644
--- a/src/vnet/lisp-gpe/lisp_gpe.h
+++ b/src/vnet/lisp-gpe/lisp_gpe.h
@@ -264,7 +264,7 @@
     u32 table_id;
 
     /** bridge domain id */
-    u16 bd_id;
+    u32 bd_id;
 
     /** generic access */
     u32 dp_table;