drm/i915: Fix function name in comment

Commit 78597996 (drm/i915/bxt: Fix PPS lost state after suspend
breaking eDP link training) renamed the function to
intel_power_sequencer_reset() but forgot to update comment.

Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171114004638.5186-1-lucas.demarchi@intel.com

drivers/gpu/drm/i915/intel_dp.c

@@ -441,7 +441,7 @@ static void pps_lock(struct intel_dp *intel_dp)
 	struct drm_i915_private *dev_priv = to_i915(intel_dp_to_dev(intel_dp));
 
 	/*
-	 * See vlv_power_sequencer_reset() why we need
+	 * See intel_power_sequencer_reset() why we need
 	 * a power domain reference here.
 	 */
 	intel_display_power_get(dev_priv, intel_dp->aux_power_domain);