perf kwork: Set ordered_events to true in 'struct perf_tool'

'perf kwork' processes data based on timestamps and needs to sort events.

Fixes: f98919ec ("perf kwork: Implement 'report' subcommand")
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20230812084917.169338-4-yangjihong1@huawei.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-kwork.c

@@ -1697,6 +1697,7 @@ int cmd_kwork(int argc, const char **argv)
 			.mmap		= perf_event__process_mmap,
 			.mmap2		= perf_event__process_mmap2,
 			.sample		= perf_kwork__process_tracepoint_sample,
+			.ordered_events = true,
 		},
 		.atom_page_list      = LIST_HEAD_INIT(kwork.atom_page_list),
 		.sort_list           = LIST_HEAD_INIT(kwork.sort_list),