mlx5: Remove checksum on command interface commands

Checksum calculations consume CPU resources and can be significant to
the rate of resource creation/destruction.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --cc drivers/net/ethernet/mellanox/mlx5/core/cmd.c
Simple merge

diff --cc drivers/net/ethernet/mellanox/mlx5/core/main.c
Simple merge

diff --cc include/linux/mlx5/device.h
Simple merge

diff --cc include/linux/mlx5/driver.h
Simple merge