There is logic to avoid printing the regrouping warning for wild card
PMUs, this logic also needs to apply for wild card events.

Before:
```
$ perf stat -e '{data_read,data_write}' -a sleep 1
WARNING: events were regrouped to match PMUs

 Performance counter stats for 'system wide':

          2,979.16 MiB  data_read
            410.26 MiB  data_write

       1.001541923 seconds time elapsed
```
After:
```
$ perf stat -e '{data_read,data_write}' -a sleep 1

 Performance counter stats for 'system wide':

          2,975.94 MiB  data_read
            432.05 MiB  data_write

       1.001119499 seconds time elapsed
```

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/parse-events.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 5dcfbf316bf6..0aa4308edb6c 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1722,6 +1722,7 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 							  auto_merge_stats)) {
 					pr_debug("%s -> %s/%s/\n", str,
 						 pmu->name, alias->str);
+					parse_state->wild_card_pmus = true;
 					ok++;
 				}
 				parse_events_terms__delete(orig_head);
-- 
2.41.0.162.gfafddb0af9-goog