drm/i915: Add IS_SKL_GT3 and IS_SKL_GT4 macro.
drm/i915: Add IS_SKL_GT3 and IS_SKL_GT4 macro.

It will be usefull to specify w/a that affects only SKL GT3 and GT4.

Signed-off-by: Sagar Arun Kamble <62b58dd0eb53fa21fa48cd26c48bd762ae55ccd5@intel.com>
Reviewed-by: Alex Dai <5900453bed04d10de9d8f6afb7187a07f8704bb0@intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs