drm/xe/xe2: Add one more bit to encode PAT to ppgtt entries

Xe2 adds one more bit to cover all the possible 32 entries. Although
those entries are not used by internal kernel code paths, it's expected
that userspace will make use of it.

Bspec: 59510, 67095
Reviewed-by: Pallavi Mishra <pallavi.mishra@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://lore.kernel.org/r/20231006182325.3617685-2-lucas.demarchi@intel.com


Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>