add: tts-large-fp8/generation_config.json (FP8 LM-backbone shard, pre-quantized from aoi-ot/VibeVoice-Large)

tts-large-fp8/generation_config.json

@@ -0,0 +1,4 @@
+{
+  "_from_model_config": true,
+  "transformers_version": "4.57.6"
+}