harmonize the language codes list with NLLB

Signed-off-by: David Dale <daviddale@meta.com>

flores.py

@@ -10,7 +10,7 @@ code_mapping = {
     "Amharic": "amh_Ethi",
     "North Levantine Arabic": "apc_Arab",
     "Modern Standard Arabic": "arb_Arab",
-    "Modern Standard Arabic (Romanized)": "arb_Latn",
+    # "Modern Standard Arabic (Romanized)": "arb_Latn",  # it is in FLORES, but not in NLLB
     "Najdi Arabic": "ars_Arab",
     "Moroccan Arabic": "ary_Arab",
     "Egyptian Arabic": "arz_Arab",
@@ -115,7 +115,7 @@ code_mapping = {
     "Maithili": "mai_Deva",
     "Malayalam": "mal_Mlym",
     "Marathi": "mar_Deva",
-    "Minangkabau (Arabic script)": "min_Arab",
+    # "Minangkabau (Arabic script)": "min_Arab",   # it is in FLORES, but not in NLLB
     "Minangkabau (Latin script)": "min_Latn",
     "Macedonian": "mkd_Cyrl",
     "Plateau Malagasy": "plt_Latn",
@@ -149,7 +149,7 @@ code_mapping = {
     "Russian": "rus_Cyrl",
     "Sango": "sag_Latn",
     "Sanskrit": "san_Deva",
-    "Santali": "sat_Olck",
+    "Santali": "sat_Beng",  # It is called sat_Olck in FLORES, but (less correctly sat_Beng in NLLB)
     "Sicilian": "scn_Latn",
     "Shan": "shn_Mymr",
     "Sinhala": "sin_Sinh",