[NATIVECPU] enabling OCK in Linux CI (testing only)

Author: uwedolinsky

.github/workflows/sycl-linux-build.yml

@@ -202,8 +202,7 @@ jobs:
           --ci-defaults ${{ inputs.build_configure_extra_args }} \
           -DCMAKE_C_COMPILER_LAUNCHER=ccache \
           -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
-          -DLLVM_INSTALL_UTILS=ON \
-          -DNATIVECPU_USE_OCK=Off
+          -DLLVM_INSTALL_UTILS=ON
     - name: Compile
       id: build
       # Emulate default value for manual dispatch as we've run out of available arguments.