drm/xe: Convert xe_bo_create_pin_map() for exhaustive eviction

Introduce an xe_bo_create_pin_map_novm() function that does not
take the drm_exec paramenter to simplify the conversion of many
callsites.
For the rest, ensure that the same drm_exec context that was used
for locking the vm is passed down to validation.

Use xe_validation_guard() where appropriate.

v2:
- Avoid gotos from within xe_validation_guard(). (Matt Brost)
- Break out the change to pf_provision_vf_lmem8 to a separate
  patch.
- Adapt to signature change of xe_validation_guard().

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250908101246.65025-12-thomas.hellstrom@linux.intel.com