Suspect `-p ETW` is not enabling the CLR rundown provider

When there's a benchmark that spends substantial amounts of time in R2R code, neither PerfView or my own ETL parsing can resolve CPU samples down to the method level.

For example https://github.com/dotnet/runtime/issues/84264#issuecomment-1521994085.

Seems like we might see similar things on desktop with NGEN, though I have not tried this.

https://github.com/microsoft/perfview/blob/564309807cb280823377db4e6fc24a1aeae34a90/src/TraceEvent/Parsers/ClrTraceEventParser.cs#L13406-L13449