convert : XLMRoberta Type Vocab Size (#10458)

This matches the key in common bert-based embedding models and may have a
value other than 1 in it.

Branch: XLMRobertaTypeVocabSize

Signed-off-by: Gabe Goodhart <ghart@us.ibm.com>

convert_hf_to_gguf.py

@@ -2707,7 +2707,7 @@ class XLMRobertaModel(BertModel):
         self.gguf_writer.add_token_scores(scores)
         self.gguf_writer.add_token_types(toktypes)
         self.gguf_writer.add_add_space_prefix(add_prefix)
-        self.gguf_writer.add_token_type_count(1)
+        self.gguf_writer.add_token_type_count(self.hparams.get("type_vocab_size", 1))
         self.gguf_writer.add_remove_extra_whitespaces(remove_whitespaces)
         if precompiled_charsmap:
             self.gguf_writer.add_precompiled_charsmap(precompiled_charsmap)