reverted backend=sendnn to backend=sendnn_decoder

Signed-off-by: Joshua Rosenkranz <jmrosenk@us.ibm.com>

Author: JRosenkranz

tests/models/test_decoders.py

@@ -141,7 +141,7 @@ def test_common_shapes(model_path, batch_size, seq_length, max_new_tokens):
 
     model.eval()
     torch.set_grad_enabled(False)
-    model.compile(backend="sendnn")
+    model.compile(backend="sendnn_decoder")
 
     # prepare the cpu model
     validation_model = get_model(