drm/i915/gen9: Add WaDisableCtxRestoreArbitration workaround
drm/i915/gen9: Add WaDisableCtxRestoreArbitration workaround

In Indirect and Per context w/a batch buffer,
+WaDisableCtxRestoreArbitration

v2: SKL revision id was used for BXT, copy paste error found during
internal review (Bob Beckett).

v3: use updated macro.

Reviewed-by: Mika Kuoppala <cd221c71e765d1ce593d15b204fee351fb09fd98@intel.com>
Cc: Robert Beckett <411904550917ae838331bdb3b851b239d0cd1fdb@intel.com>
Cc: Mika Kuoppala <cd221c71e765d1ce593d15b204fee351fb09fd98@intel.com>
Cc: Imre Deak <fbd5edba1988036c8923f0cca0cce6ac4811db29@intel.com>
Signed-off-by: Arun Siluvery <45539a6d2f15added20c855b1db401baa019b5e8@linux.intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

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