support deepseek quant & mix-parallel with graphmode (#585)

### What this PR does / why we need it?
1. support deepseek with w8a8 quant;
2. support deepseek with mix-parallel(multi-DP, EP+TP);
3. support deepseek with graphmode.
---------

Signed-off-by: wen-jie666 <wenjie39@huawei.com>
Signed-off-by: Yizhou Liu <liuyizhou5@h-partners.com>
Signed-off-by: libaokui <libaokui@huawei.com>
Signed-off-by: linfeng-yuan <1102311262@qq.com>
Co-authored-by: wen-jie666 <wenjie39@huawei.com>

examples/dp_offline/run_dp.sh

@@ -6,15 +6,13 @@ export HCCL_SOCKET_IFNAME=${ifname}
 # dp_size = node_size * dp_per_node
 node_size=1
 node_rank=0
-dp_per_node=2
+dp_per_node=4
 master_addr=127.0.0.1
 master_port=12345
 
 rm -rf ./.torchair_cache/
 rm -rf ./dynamo_*
 rm -rf /root/ascend/log/debug/plog/*
-export VLLM_ENABLE_GRAPH_MODE=0
-export VLLM_ENABLE_MC2=0
 
 torchrun --nproc_per_node ${dp_per_node} --nnodes ${node_size} \
     --node_rank ${node_rank} --master_addr ${master_addr} --master_port ${master_port} \