vxlan: fix more sparse warnings

Fix a couple harmless sparse warnings reported by Fengguang Wu.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 6f95580..8be9bf0 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1083,13 +1083,13 @@
 	if (nla_put_u32(skb, IFLA_VXLAN_ID, vxlan->vni))
 		goto nla_put_failure;
 
-	if (vxlan->gaddr && nla_put_u32(skb, IFLA_VXLAN_GROUP, vxlan->gaddr))
+	if (vxlan->gaddr && nla_put_be32(skb, IFLA_VXLAN_GROUP, vxlan->gaddr))
 		goto nla_put_failure;
 
 	if (vxlan->link && nla_put_u32(skb, IFLA_VXLAN_LINK, vxlan->link))
 		goto nla_put_failure;
 
-	if (vxlan->saddr && nla_put_u32(skb, IFLA_VXLAN_LOCAL, vxlan->saddr))
+	if (vxlan->saddr && nla_put_be32(skb, IFLA_VXLAN_LOCAL, vxlan->saddr))
 		goto nla_put_failure;
 
 	if (nla_put_u8(skb, IFLA_VXLAN_TTL, vxlan->ttl) ||