[Hardware] Replace torch.cuda.empty_cache with torch.accelerator.empty_cache (#30681)

Signed-off-by: Kunshang Ji <kunshang.ji@intel.com>
Signed-off-by: Kunshang Ji <jikunshang95@gmail.com>
Co-authored-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

examples/offline_inference/lora_with_quantization_inference.py

@@ -120,7 +120,7 @@ def main():
         # Clean up the GPU memory for the next test
         del engine
         gc.collect()
-        torch.cuda.empty_cache()
+        torch.accelerator.empty_cache()
 
 
 if __name__ == "__main__":