[Telemetry + tools/perf] Modify the pylint disable message to use symbolic name

tools/perf/metrics/cpu.py

Index: tools/perf/metrics/cpu.py
diff --git a/tools/perf/metrics/cpu.py b/tools/perf/metrics/cpu.py
index 7cb7a82cfac7164664582c96cda987e077e21dbb..cc86e08573aa37bb67d609b9d8f604b2aa06779e 100644
--- a/tools/perf/metrics/cpu.py
+++ b/tools/perf/metrics/cpu.py
@@ -37,7 +37,7 @@ class CpuMetric(Metric):
     self._stop_cpu = self._browser.cpu_stats
 
   # Optional argument trace_name is not in base class Metric.
-  # pylint: disable=W0221
+  # pylint: disable=arguments-differ
   def AddResults(self, tab, results, trace_name='cpu_utilization'):
     if not self._browser.supports_cpu_metrics:
       return