eth: tsnep: let page recycling happen with skbs

tsnep builds an skb with napi_build_skb() and then calls
page_pool_release_page() for the page in which that skb's
head sits. Use recycling instead, recycling of heads works
just fine.

Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com>
Link: https://lore.kernel.org/r/20230720010409.1967072-2-kuba@kernel.org


Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>