libc: remove obsolete CLOCK_REALTIME_HR and CLOCK_MONOTONIC_HR

Add CLOCK_MONOTONIC_RAW, CLOCK_REALTIME_COARSE, and CLOCK_MONOTONIC_COARSE
as supported by recent linux kernels.

(cherry-pick of 60e5144ca312b210b54ac8e6966108da0c97ff80.)

Bug: 8895727
Change-Id: If79a4d05d1301108f49a37588f9416c4be19277a
diff --git a/libc/include/time.h b/libc/include/time.h
index edcc5bd..8995585 100644
--- a/libc/include/time.h
+++ b/libc/include/time.h
@@ -101,8 +101,9 @@
 #define CLOCK_MONOTONIC            1
 #define CLOCK_PROCESS_CPUTIME_ID   2
 #define CLOCK_THREAD_CPUTIME_ID    3
-#define CLOCK_REALTIME_HR          4
-#define CLOCK_MONOTONIC_HR         5
+#define CLOCK_MONOTONIC_RAW        4
+#define CLOCK_REALTIME_COARSE      5
+#define CLOCK_MONOTONIC_COARSE     6
 #define CLOCK_BOOTTIME             7
 #define CLOCK_REALTIME_ALARM       8
 #define CLOCK_BOOTTIME_ALARM       9