ixgbevf: Fix broken trunk vlan

Changes to clean up the vlan rx path broke trunk vlan.  Trunk vlans in
a VF driver are those set using:

"ip link set <pfdev> vf <n> <vlanid>"
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
CC: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c

@@ -293,12 +293,10 @@ static void ixgbevf_receive_skb(struct ixgbevf_q_vector *q_vector,
 {
 	struct ixgbevf_adapter *adapter = q_vector->adapter;
 	bool is_vlan = (status & IXGBE_RXD_STAT_VP);
+	u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan);
 
-	if (is_vlan) {
-		u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan);
-
+	if (is_vlan && test_bit(tag, adapter->active_vlans))
 		__vlan_hwaccel_put_tag(skb, tag);
-	}
 
 	if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL))
 			napi_gro_receive(&q_vector->napi, skb);