tc_vlan: fix type of tcfv_push_vid

Should be u16. So fix it to kill the sparse warning.

Fixes: c7e2b968 "sched: introduce vlan action"
Signed-off-by: NJiri Pirko <jiri@resnulli.us>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/tc_act/tc_vlan.h

@@ -18,7 +18,7 @@
 struct tcf_vlan {
 	struct tcf_common	common;
 	int			tcfv_action;
-	__be16			tcfv_push_vid;
+	u16			tcfv_push_vid;
 	__be16			tcfv_push_proto;
 };
 #define to_vlan(a) \