drm/i915/bxt: HardWare WorkAround ring initialisation for Broxton
drm/i915/bxt: HardWare WorkAround ring initialisation for Broxton

Adds framework for Broxton HW WAs

Signed-off-by: Nick Hoath <d8c60c4ef7624f447080543e0ceaab33f523ed33@intel.com>
Signed-off-by: Imre Deak <fbd5edba1988036c8923f0cca0cce6ac4811db29@intel.com>
Reviewed-by: Nick Hoath <d8c60c4ef7624f447080543e0ceaab33f523ed33@intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

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