drm/i915/gvt: Use to_gt() helper

Use to_gt() helper consistently throughout the codebase.
Pure mechanical s/i915->gt/to_gt(i915). No functional changes.
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211214193346.21231-7-andi.shyti@linux.intel.com

drivers/gpu/drm/i915/gvt/gvt.c

@@ -205,7 +205,7 @@ int intel_gvt_init_device(struct drm_i915_private *i915)
 	spin_lock_init(&gvt->scheduler.mmio_context_lock);
 	mutex_init(&gvt->lock);
 	mutex_init(&gvt->sched_lock);
-	gvt->gt = &i915->gt;
+	gvt->gt = to_gt(i915);
 	i915->gvt = gvt;
 
 	init_device_info(gvt);

drivers/gpu/drm/i915/gvt/scheduler.c

@@ -1386,7 +1386,7 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
 	enum intel_engine_id i;
 	int ret;
 
-	ppgtt = i915_ppgtt_create(&i915->gt, I915_BO_ALLOC_PM_EARLY);
+	ppgtt = i915_ppgtt_create(to_gt(i915), I915_BO_ALLOC_PM_EARLY);
 	if (IS_ERR(ppgtt))
 		return PTR_ERR(ppgtt);