drm/i915: Reclassify SKL 0x1923 and 0x1927 as ULT

Reclassify 0x1923, 0x1927 according to specifications. Of note,
the second to last digit seems to correspond to GT#.

Signed-off-by: Alexei Podtelezhnikov <apodtele@gmail.com>
[vsyrjala: Split separate changes into separate patches,
           Sort the IDs]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716172106.2656-4-ville.syrjala@linux.intel.com


Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>