flow: The type of vni in VxLAN flow should be u32

Type: fix

Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
Change-Id: I40732dfb4fee4a5cfd699a8badea13d070f6b367
diff --git a/src/vnet/flow/flow_cli.c b/src/vnet/flow/flow_cli.c
index aea2534..e2a3141 100644
--- a/src/vnet/flow/flow_cli.c
+++ b/src/vnet/flow/flow_cli.c
@@ -353,7 +353,7 @@
   u32 hw_if_index = ~0, flow_index = ~0;
   int rv;
   u32 teid = 0, session_id = 0, spi = 0;
-  u16 vni = 0;
+  u32 vni = 0;
   vnet_flow_type_t type = VNET_FLOW_TYPE_UNKNOWN;
   ip4_address_and_mask_t ip4s = { };
   ip4_address_and_mask_t ip4d = { };