mlx4_en: Always allocate RX ring for each interrupt vector

Removed module parameter specifying number of RX rings

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --cc drivers/net/mlx4/en_main.c
Simple merge

diff --cc drivers/net/mlx4/en_params.c
Simple merge