net: atl1c: switch to napi_consume_skb()

Switch to napi_consume_skb() to take advantage of bulk free, and skb
reuse through skb cache in conjunction with napi_build_skb().

When parameter 'budget' = 0, indicating non-NAPI context,
dev_consume_skb_any() is called internally.

Signed-off-by: Sieng-Piaw Liew <liew.s.piaw@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>