run netperf in smoketest as well

tools/jenkins/run_performance.sh

@@ -34,4 +34,4 @@ set -ex
 # Enter the gRPC repo root
 cd $(dirname $0)/../..
 
-tools/run_tests/run_performance_tests.py -l c++ node ruby csharp python go
+tools/run_tests/run_performance_tests.py -l c++ node ruby csharp python go --netperf