skip test low bit optim

Author: petrex

Diff for: test/prototype/test_low_bit_optim.py

@@ -43,6 +43,8 @@
 except ImportError:
     lpmm = None
 
+if torch.version.hip is not None:
+    pytest.skip("Skipping the test in ROCm", allow_module_level=True)
 
 _DEVICES = get_available_devices()