drm/i915/xehp: Extra media engines - Part 1 (engine definitions)

Xe_HP can have a lot of extra media engines. This patch adds the basic
definitions for them.

v2:
 - Re-order intel_gt_info and intel_device_info slightly to avoid
   unnecessary padding now that we've increased the size of
   intel_engine_mask_t.  (Tvrtko)
v3:
 - Drop the .hw_id assignments.  (Lucas)
v4:
 - Fix graphics_ver typo for VCS4 (should be 12, not 11).  (Lucas)

Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210723191024.1553405-1-matthew.d.roper@intel.com