perf script: Fix unnecessary machine_resolve()

machine_resolve() may have already been called. Test for that to avoid
calling it again unnecessarily.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https //lore.kernel.org/r/20210811101036.17986-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-script.c

@@ -2212,7 +2212,7 @@ static int process_sample_event(struct perf_tool *tool,
 	if (filter_cpu(sample))
 		goto out_put;
 
-	if (machine__resolve(machine, &al, sample) < 0) {
+	if (!al.thread && machine__resolve(machine, &al, sample) < 0) {
 		pr_err("problem processing %d event, skipping it.\n",
 		       event->header.type);
 		ret = -1;