As those following recent changes from Eric know very well
using NAPI skb cache is crucial to achieve good perf, at
least on recent AMD platforms. Make sure bnxt feeds the skb
cache with Tx skbs.
Reviewed-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>