[CPU] Enable data parallel for CPU backend (#23903)

Signed-off-by: jiang1.li <jiang1.li@intel.com>

docs/getting_started/installation/cpu/x86.inc.md

@@ -43,7 +43,7 @@ docker build -f docker/Dockerfile.cpu \
 
 # Launching OpenAI server
 docker run --rm \
-            --privileged=true \
+            --security-opt seccomp=unconfined \
             --shm-size=4g \
             -p 8000:8000 \
             -e VLLM_CPU_KVCACHE_SPACE=<KV cache space> \