net/mlx4_en: Move queue stopped/waked counters to be per ring

Give accurate counters and avoids cache misses when several rings
update the counters of stop/wake queue.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/ethernet/mellanox/mlx4/en_port.c
Simple merge

diff --cc drivers/net/ethernet/mellanox/mlx4/en_tx.c
Simple merge

diff --cc drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
Simple merge