drm/xe/guc: Move state change logger to helper

In the state change helper we are already doing extra stuff,
move debug state logger there to cover all state changes.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Acked-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250709174038.1876-3-michal.wajdeczko@intel.com