Fix incorrect cluster name in TTT model config (#36352)

### Ticket
NA
### Problem description
- APC failing due to: `E AttributeError: P300x2. Did you mean:
'P300_X2'` ?


### What's changed
- incorrect names for cluster types

### Checklist
- [x]
[APC](https://github.com/tenstorrent/tt-metal/actions/runs/21260749135)

Author: alingTT

models/tt_transformers/tt/model_config.py

@@ -1481,9 +1481,9 @@ def is_distributed_norm(self, mode):
     def ccl_topology(self):
         # Use ring on a T3K or 6U galaxy or P300x2 or P150x4/8 submesh
         if ttnn.cluster.get_cluster_type() in [
-            ttnn.cluster.ClusterType.P300x2,
-            ttnn.cluster.ClusterType.P150x4,
-            ttnn.cluster.ClusterType.P150x8,
+            ttnn.cluster.ClusterType.P300_X2,
+            ttnn.cluster.ClusterType.P150_X4,
+            ttnn.cluster.ClusterType.P150_X8,
             ttnn.cluster.ClusterType.T3K,
             ttnn.cluster.ClusterType.GALAXY,
         ]: