drm/i915/gen8: Add gen8_init_workarounds for common WA
drm/i915/gen8: Add gen8_init_workarounds for common WA

WA in this function should be ordered based on register address.
The following order is suggested (Ville),

instpm
mi_mode
row chicken
half slice chicken
common slice chicken
hdc chicken
cache_mode_0
cache_mode_1
gt_mode

Cc: Ville Syrjälä <cd6e8d405ca90be3a03d5427c5b24fbd2d68dcc4@linux.intel.com>
Signed-off-by: Arun Siluvery <45539a6d2f15added20c855b1db401baa019b5e8@linux.intel.com>
Reviewed-by: Ville Syrjälä <cd6e8d405ca90be3a03d5427c5b24fbd2d68dcc4@linux.intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

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