Due to the nature of modern Android devices, in order to usefully
interpret the power* events, you more and more often need to know the
kernel's view of temperature too. Therefore I think enabling the
thermal event group by default makes sense.
The interactive governor isn't standard any more (and was
Android-only anyway). Remove this default so you don't get errors for
kernels that don't support it.
- Remove reference to default events from the overall workload
documentation. It was, as of recently, outdated, and was also
redundant, as the actual defaults will be in the parameter-specific
documentation.
- Remove reference to Android-specific trace-cmd binary -- this was not
true for a long time.
- Clarify that the on-host trace-cmd binary is now optional due to the
report_on_target config.
