drm/i915: move display spinlock init to display code

The gem code has no business accessing i915->display directly.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231102155223.2298316-2-jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_display_driver.c

@@ -181,6 +181,7 @@ void intel_display_driver_early_probe(struct drm_i915_private *i915)
 	if (!HAS_DISPLAY(i915))
 		return;
 
+	spin_lock_init(&i915->display.fb_tracking.lock);
 	mutex_init(&i915->display.backlight.lock);
 	mutex_init(&i915->display.audio.mutex);
 	mutex_init(&i915->display.wm.wm_mutex);

drivers/gpu/drm/i915/i915_gem.c

@@ -1301,8 +1301,6 @@ void i915_gem_init_early(struct drm_i915_private *dev_priv)
 {
 	i915_gem_init__mm(dev_priv);
 	i915_gem_init__contexts(dev_priv);
-
-	spin_lock_init(&dev_priv->display.fb_tracking.lock);
 }
 
 void i915_gem_cleanup_early(struct drm_i915_private *dev_priv)