drm/xe: Add XE_VMA_PTE_64K VMA flag

drm/xe: Add XE_VMA_PTE_64K VMA flag

Add XE_VMA_PTE_64K VMA flag to ensure skipping rebinds does not cross
64k page boundaries.

Fixes: 8f33b4f054fc ("drm/xe: Avoid doing rebinds")
Fixes: c47794bdd63d ("drm/xe: Set max pte size when skipping rebinds")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240219211942.3633795-3-matthew.brost@intel.com
(cherry picked from commit 15f0e0c2c46dddd8ee56d9b3db679fd302cc4b91)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>