Flex xpu bug fix (#26135)

flex gpu bug fix

src/transformers/training_args.py

@@ -1425,12 +1425,13 @@ class TrainingArguments:
             and is_torch_available()
             and (self.device.type != "cuda")
             and (self.device.type != "npu")
+            and (self.device.type != "xpu")
             and (get_xla_device_type(self.device) != "GPU")
             and (self.fp16 or self.fp16_full_eval)
         ):
             raise ValueError(
                 "FP16 Mixed precision training with AMP or APEX (`--fp16`) and FP16 half precision evaluation"
-                " (`--fp16_full_eval`) can only be used on CUDA or NPU devices."
+                " (`--fp16_full_eval`) can only be used on CUDA or NPU devices or certain XPU devices (with IPEX)."
             )
 
         if (