perf test stat: Update test expectations and events

perf test stat: Update test expectations and events

test_stat_record_report and test_stat_record_script used default
output which triggers a bug when sending metrics. As this isn't
relevant to the test switch to using named software events.

Update the match in test_hybrid as the cycles event is now cpu-cycles
to workaround potential ARM issues.

Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>