[PATCH] net/mlx5/hws: fix incorrect dw_8_6_ext PRM offset

[Matan Azrad]

From: Alex Vesker <valex at nvidia.com>
> Subject: [PATCH] net/mlx5/hws: fix incorrect dw_8_6_ext PRM offset
> 
> The offset of format_select_dw_8_6_ext was incorrect.
> Update the reserved offsets to correct value.
> 
> Fixes: 365cdf5f8ce7 ("net/mlx5/hws: add command layer")
> Signed-off-by: Alex Vesker <valex at nvidia.com>
> Reviewed-by: Erez Shitrit <erezsh at nvidia.com>
Acked-by: Matan Azrad <matan at nvidia.com>