drm/xe/mtl: Add some initial MTL workarounds

drm/xe/mtl: Add some initial MTL workarounds

This adds a handful of workarounds that apply to production steppings of
MTL:
 - Wa_14018575942
 - Wa_22016670082
 - Wa_14017856879
 - Wa_18019271663

Wa_22016670082 is currently only applied to the primary GT at the
moment, but may need to be extended to the media GT in the future if a
pending update to the workaround database gets finalized.

OOB workarounds will need to be implemented separately in future patches
for Wa_14016712196, Wa_16018063123, and Wa_18013179988.

Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://lore.kernel.org/r/20230608181217.2385932-1-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>