bnxt_en: Pass complete VLAN TCI to the stack.

When receiving a packet with VLAN tag, pass the entire 16-bit TCI to the
stack when calling __vlan_hwaccel_put_tag().  The current code is only
passing the 12-bit tag and it is missing the priority bits.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>