Merge pull request #8107 from Bob-the-Kuhn/1.1.x-reduced-font-fix

(bug fix) 1.1.x - save 1400 bytes of FLASH by using reduced font for some languages

Marlin/language_fr_utf8.h

  * See also http://marlinfw.org/docs/development/lcd_language.html
  *
  */
-#ifndef LANGUAGE_FR_H
-#define LANGUAGE_FR_H
+#ifndef LANGUAGE_FR_UTF_H
+#define LANGUAGE_FR_UTF_H
 
 #define MAPPER_C2C3
 #define DISPLAY_CHARSET_ISO10646_1
   #define MSG_FILAMENT_CHANGE_RESUME_1      _UxGT("Reprise...")
 #endif // LCD_HEIGHT < 4
 
-#endif // LANGUAGE_FR_H
+#endif // LANGUAGE_FR_UTF_H