[ROCm] Skip tests for quantizations incompatible with ROCm (#17905)

Signed-off-by: Hissu Hyvarinen <hissu.hyvarinen@amd.com>

tests/models/quantization/test_gptq_marlin.py

@@ -14,6 +14,7 @@ import pytest
 
 from tests.quantization.utils import is_quant_method_supported
 from vllm.model_executor.layers.rotary_embedding import _ROPE_DICT
+from vllm.platforms import current_platform
 
 from ..utils import check_logprobs_close
 
@@ -34,7 +35,9 @@ MODELS = [
 
 
 @pytest.mark.flaky(reruns=3)
-@pytest.mark.skipif(not is_quant_method_supported("gptq_marlin"),
+@pytest.mark.skipif(not is_quant_method_supported("gptq_marlin")
+                    or current_platform.is_rocm()
+                    or not current_platform.is_cuda(),
                     reason="gptq_marlin is not supported on this GPU type.")
 @pytest.mark.parametrize("model", MODELS)
 @pytest.mark.parametrize("dtype", ["half", "bfloat16"])