clockid_t is declared in time.h but the include is missing. Reordering
header files may result in build breakages. Add the include to avoid
this.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/clockid.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/clockid.h b/tools/perf/util/clockid.h
index 9b49b4711c76..33dbd8673c1c 100644
--- a/tools/perf/util/clockid.h
+++ b/tools/perf/util/clockid.h
@@ -1,8 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-
 #ifndef __PERF_CLOCKID_H
 #define __PERF_CLOCKID_H
 
+#include <time.h>
+
 struct option;
 int parse_clockid(const struct option *opt, const char *str, int unset);
 
-- 
2.53.0.1118.gaef5881109-goog