net/mlx5: Improve QoS error messages with actual depth values

net/mlx5: Improve QoS error messages with actual depth values

Enhance error messages in MLX5 QoS scheduling depth validation by
including the actual values that caused the validation to fail.

Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1759094723-843774-4-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>