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

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

tests/models/quantization/test_fp8.py

@@ -55,6 +55,14 @@ def test_models(
     Only checks log probs match to cover the discrepancy in
     numerical sensitive kernels.
     """
+
+    if backend == "FLASHINFER" and current_platform.is_rocm():
+        pytest.skip("Flashinfer does not support ROCm/HIP.")
+
+    if kv_cache_dtype == "fp8_e5m2" and current_platform.is_rocm():
+        pytest.skip(
+            f"{kv_cache_dtype} is currently not supported on ROCm/HIP.")
+
     with monkeypatch.context() as m:
         m.setenv("TOKENIZERS_PARALLELISM", 'true')
         m.setenv(STR_BACKEND_ENV_VAR, backend)