fsdp embeddings should be float32 per comment

src/axolotl/utils/models.py

@@ -1309,7 +1309,7 @@ class ModelLoader:
 
         # make sure these are fp32 per Ramesh et al. (2021)
         embedding_modules = get_linear_embedding_layers(self.cfg.model_config_type)
-        if not self.cfg.fsdp:
+        if self.cfg.fsdp:
             # FSDP doesn't like mixed Float and BFloat16
             self.convert_embedding_modules_dtype(
                 embedding_modules,