vfio/mlx5: Fix range size calculation upon tracker creation

Fix range size calculation to include the last byte of each range.

In addition, log round up the length of the total ranges to be stricter.

Fixes: c1d050b0

 ("vfio/mlx5: Create and destroy page tracker object")
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20230208152234.32370-1-yishaih@nvidia.com


Signed-off-by: Alex Williamson <alex.williamson@redhat.com>