Fix some mapper, charsize problems (#9866)

Marlin/src/lcd/language/language_es_utf8.h

 
 #define MAPPER_C2C3
 #define DISPLAY_CHARSET_ISO10646_1
+#define CHARSIZE 2
 
 #define WELCOME_MSG                         MACHINE_NAME _UxGT(" lista.")
 #define MSG_BACK                            _UxGT("Atrás")

Marlin/src/lcd/language/language_pt-br_utf8.h

 #ifndef LANGUAGE_PT_BR_UTF_H
 #define LANGUAGE_PT_BR_UTF_H
 
+#define MAPPER_C2C3
 #define DISPLAY_CHARSET_ISO10646_1
 #define CHARSIZE 2
 

Marlin/src/lcd/language/language_pt_utf8.h

 #ifndef LANGUAGE_PT_UTF_H
 #define LANGUAGE_PT_UTF_H
 
+#define MAPPER_C2C3
 #define DISPLAY_CHARSET_ISO10646_1
 #define CHARSIZE 2