[ROCm][CI] Cleaning and restructuring amd-ci legacy pipeline (#34839)

Signed-off-by: Andreas Karatzas <akaratza@amd.com>

tests/quantization/test_mi3xx_moe.py

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+
+def test_mi3xx_moe():
+    print("TODO: add tests for Mi3xx MoE quantization")