perf test: Add perf trace summary test

perf test: Add perf trace summary test

  $ sudo ./perf test -vv 'trace summary'
  109: perf trace summary:
  --- start ---
  test child forked, pid 3501572
  testing: perf trace -s -- true
  testing: perf trace -S -- true
  testing: perf trace -s --summary-mode=thread -- true
  testing: perf trace -S --summary-mode=total -- true
  testing: perf trace -as --summary-mode=thread --no-bpf-summary -- true
  testing: perf trace -as --summary-mode=total --no-bpf-summary -- true
  testing: perf trace -as --summary-mode=thread --bpf-summary -- true
  testing: perf trace -as --summary-mode=total --bpf-summary -- true
  testing: perf trace -aS --summary-mode=total --bpf-summary -- true
  ---- end(0) ----
  109: perf trace summary                                              : Ok

Reviewed-by: Howard Chu <howardchu95@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20250326044001.3503432-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>