Update gated_delta_net.py

Author: yuzhongw-nvidia

megatron/core/ssm/gated_delta_net.py

@@ -738,7 +738,7 @@ def get_parameter_local_cp(
     slices = [slice(None)] * param.dim()
     dim_size = param.size(dim=dim)
     slices[dim] = slice(cp_rank * dim_size // cp_size, (cp_rank + 1) * dim_size // cp_size)
-    param = param[slices]
+    param = param[tuple(slices)]
     return param