tsnep: Forward NAPI budget to napi_consume_skb()

NAPI budget must be forwarded to napi_consume_skb(). It is used to
detect non-NAPI context.

Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>