Skip Triton import for AMD (microsoft#5110)

When testing DeepSpeed inference on an `AMD Instinct MI250X/MI250` GPU,
the `pytorch-triton-rocm` module would break the `torch.cuda` device
API. To address this, importing `triton` is skipped when the GPU is
determined to be `AMD`.

This change allows DeepSpeed to be executed on an AMD GPU w/o kernel
injection in the DeepSpeedExamples [text-generation
example](https://github.com/microsoft/DeepSpeedExamples/tree/master/inference/huggingface/text-generation)
using the following command:
```bash
deepspeed --num_gpus 1 inference-test.py --model facebook/opt-125m
```

TODO: Root-cause the interaction between `pytorch-triton-rocm` and
DeepSpeed to understand why this is causing the `torch.cuda` device API
to break.

deepspeed/__init__.py

@@ -12,10 +12,14 @@
 from torch.optim.lr_scheduler import _LRScheduler
 from packaging import version as pkg_version
 
-try:
-    import triton  # noqa: F401 # type: ignore
-    HAS_TRITON = True
-except ImportError:
+# Skip Triton import for AMD due to pytorch-triton-rocm module breaking device API in DeepSpeed
+if not (hasattr(torch.version, 'hip') and torch.version.hip is not None):
+    try:
+        import triton  # noqa: F401 # type: ignore
+        HAS_TRITON = True
+    except ImportError:
+        HAS_TRITON = False
+else:
     HAS_TRITON = False
 
 from . import ops