perfetto: Also set handles_incremental_state_clear for system producer

Change-Id: I2658f64cabdf622071e2d8ba0c2063aa2342e847
TBR: nuskos@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1815020Reviewed-by: Eric Seckler <eseckler@chromium.org>
Reviewed-by: Stephen Nusko <nuskos@chromium.org>
Commit-Queue: Eric Seckler <eseckler@chromium.org>
Auto-Submit: Eric Seckler <eseckler@chromium.org>
Cr-Commit-Position: refs/heads/master@{#698966}

services/tracing/public/cpp/perfetto/android_system_producer.cc

@@ -80,6 +80,7 @@ void AndroidSystemProducer::NewDataSourceAdded(
   new_registration.set_name(data_source->name());
   new_registration.set_will_notify_on_start(true);
   new_registration.set_will_notify_on_stop(true);
+  new_registration.set_handles_incremental_state_clear(true);
   service_->RegisterDataSource(new_registration);
 }