Runner - Fix sudo issue when running without Docker (#362)

Fix sudo issue when running without Docker, user account could be
arbitrary in such case.

superbench/runner/runner.py

@@ -407,7 +407,7 @@ def _run_proc(self, benchmark_name, mode, vars):
 
         ansible_runner_config['timeout'] = timeout
 
-        rc = self._ansible_client.run(ansible_runner_config, sudo=True)
+        rc = self._ansible_client.run(ansible_runner_config, sudo=(not self._docker_config.skip))
         return rc
 
     def run(self):