drm/i915: Fix short description of intel_display_power_is_enabled()

That's the version actually taking the dev_priv->power_domains lock.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index f5a78d5..8a2bd18 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -118,7 +118,7 @@
 }
 
 /**
- * intel_display_power_is_enabled - unlocked check for a power domain
+ * intel_display_power_is_enabled - check for a power domain
  * @dev_priv: i915 device instance
  * @domain: power domain to check
  *