drm/xe: Trace xe_bo_validate

Add a tracepoint for xe_bo_validate function. I found this is
useful during debug issues.

Signed-off-by: Oak Zeng <oak.zeng@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241203022140.1919922-1-oak.zeng@intel.com


Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>