drm/xe/xe2lpg: Add permanent wa_14020756599

For xe2_lpg render Wa_14020756599 is applied to
all steppings.

Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240603104951.705603-3-tejas.upadhyay@intel.com