[main] rename device type (#5099)

### What this PR does / why we need it?
Rename `_910B` to `A2`;
Rename `_910_93` to `A3`;
Rename `_910_95` to `A5`;

- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c

Signed-off-by: zzzzwwjj <1183291235@qq.com>

vllm_ascend/attention/attention_v1.py

@@ -640,7 +640,7 @@ class AscendAttentionBackendImpl(AttentionImpl):
         attn_metadata: AscendMetadata,
         output: Optional[torch.Tensor] = None,
     ) -> torch.Tensor:
-        if get_ascend_device_type() == AscendDeviceType._910_95:
+        if get_ascend_device_type() == AscendDeviceType.A5:
             return self._forward_decode_only_ascend91095(
                 query, attn_metadata, output)
         if self.sliding_window is not None and attn_metadata.seq_lens.shape[
@@ -729,7 +729,7 @@ class AscendAttentionBackendImpl(AttentionImpl):
             if self.key_cache is None:
                 self.key_cache, self.value_cache = kv_cache[0], kv_cache[1]
             slots = attn_metadata.slot_mapping
-            if get_ascend_device_type() == AscendDeviceType._910_95:
+            if get_ascend_device_type() == AscendDeviceType.A5:
                 # TODO: Once eagle running to here, it may has error because of the 0 dim of slot_mapping.
                 # Should check if the 0 dim of slot_mapping must equal to the 0 dim of key.
                 # If it's necessary, the slots should be sliced.