LLM: arc perf test using ipex2.1 (#9837)

* LLM: upgrade to ipex_2.1 for arc perf test

* revert llm_performance_tests.yml

.github/workflows/llm_performance_tests.yml

@@ -65,18 +65,18 @@ jobs:
       - name: Run LLM install (all) test
         uses: ./.github/actions/llm/setup-llm-env
         with:
-          extra-dependency: "xpu"
+          extra-dependency: "xpu_2.1"
 
       - name: Test installed xpu version
         shell: bash
         run: |
-          source /home/arda/intel/oneapi/setvars.sh
+          source /opt/intel/oneapi/setvars.sh
           bash python/llm/test/run-llm-install-tests.sh
 
       - name: Test on xpu
         shell: bash
         run: |
-          source /home/arda/intel/oneapi/setvars.sh
+          source /opt/intel/oneapi/setvars.sh
           export USE_XETLA=OFF
           export SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS=1
           cp python/llm/test/benchmark/arc-perf-test.yaml python/llm/dev/benchmark/all-in-one/config.yaml