net/mlx5: Expose bits for querying special mkeys

Add needed HW bits to query the values of all special mkeys.

Link: https://lore.kernel.org/r/080ebb563a9717c15b1ea75d669aede676df386b.1673960981.git.leon@kernel.org


Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>