[Intel-gfx] [RFC 07/28] drm/i915: Convert init_unused_rings to intel_gt

[Chris Wilson]

Quoting Tvrtko Ursulin (2019-06-13 14:35:18)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> More removal of implicit dev_priv from using old mmio accessors.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris