Update time.h for CLOCK_BOOTTIME.
(cherry-pick of 8958a383296ea0e1cc106ae245c37671809ffd49)
Change-Id: Ie8de6b32fa81566db53ad7e9fd4b197f4cede628
diff --git a/libc/include/time.h b/libc/include/time.h
index 8867b32..e280e0a 100644
--- a/libc/include/time.h
+++ b/libc/include/time.h
@@ -103,6 +103,7 @@
#define CLOCK_THREAD_CPUTIME_ID 3
#define CLOCK_REALTIME_HR 4
#define CLOCK_MONOTONIC_HR 5
+#define CLOCK_BOOTTIME 7
extern int timer_create(int, struct sigevent*, timer_t*);
extern int timer_delete(timer_t);