[extractor/iq] Set more language codes (#6476)

Authored by: D0LLYNH0

yt_dlp/extractor/iqiyi.py

@@ -440,12 +440,14 @@ class IqIE(InfoExtractor):
         '1': 'zh_CN',
         '2': 'zh_TW',
         '3': 'en',
-        '4': 'kor',
+        '4': 'ko',
+        '5': 'ja',
         '18': 'th',
         '21': 'my',
         '23': 'vi',
         '24': 'id',
         '26': 'es',
+        '27': 'pt',
         '28': 'ar',
     }