drm/xe/guc: Reuse code while debugging GuC params

There is no need to duplicate code to print GuC parameters.

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240404155046.627-2-michal.wajdeczko@intel.com