drm/xe/ptl: Add GuC FW definition for PTL

The first official GuC relase for PTL is 70.47.0, which maps to
API version 1.22.4.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20250626182805.1701096-14-daniele.ceraolospurio@intel.com