[CI][AMD] Skip test_permute_cols since the kernel is not used and not built for ROCm (#32444)

Signed-off-by: Randall Smith <ransmith@amd.com>

tests/kernels/core/test_permute_cols.py

@@ -7,6 +7,9 @@ import torch
 from tests.kernels.utils import opcheck
 from vllm._custom_ops import permute_cols
 
+if not hasattr(torch.ops._C, "permute_cols"):
+    pytest.skip(reason="permute_cols is not supported on ROCm", allow_module_level=True)
+
 
 @pytest.mark.parametrize("shape", [(1, 512), (544, 4096), (67, 8192)])
 @pytest.mark.parametrize("dtype", [torch.bfloat16])