drm/i915/overlay: prefer struct drm_i915_private to drm_i915_private_t
drm/i915/overlay: prefer struct drm_i915_private to drm_i915_private_t

No functional changes.

Signed-off-by: Jani Nikula <ba783f3beccaedfda693f41a15407d612a629408@intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

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