Update some comments

Marlin/src/module/settings.cpp

  */
 
 /**
- * configuration_store.cpp
+ * settings.cpp
  *
  * Settings and EEPROM storage
  *

Marlin/src/module/settings.h

  */
 #pragma once
 
+//
+// settings.cpp - Settings and EEPROM storage
+//
+
 #include "../inc/MarlinConfig.h"
 
 #if ENABLED(EEPROM_SETTINGS)

Marlin/src/module/temperature.cpp

 #endif
 
 #if ENABLED(PID_EXTRUSION_SCALING)
-  int16_t Temperature::lpq_len; // Initialized in configuration_store
+  int16_t Temperature::lpq_len; // Initialized in settings.cpp
 #endif
 
 #if HAS_PID_HEATING