Add missing function prototypes in time.h

Add clock_settime() and clock_nanosleep() function
prototypes in time.h.

Change-Id: I0eb45e465b3b48b9d4f3a4a8109a6f2d9c4f8ce2
Signed-off-by: Haruki Hasegawa <h6a.h4i.0@gmail.com>
diff --git a/ndk/platforms/android-L/include/time.h b/ndk/platforms/android-L/include/time.h
index 0a5f18b..aa72fcc 100644
--- a/ndk/platforms/android-L/include/time.h
+++ b/ndk/platforms/android-L/include/time.h
@@ -85,8 +85,10 @@
 
 extern clock_t clock(void) __LIBC_ABI_PUBLIC__;
 
-extern int clock_getres(int, struct timespec*) __LIBC_ABI_PUBLIC__;
-extern int clock_gettime(int, struct timespec*) __LIBC_ABI_PUBLIC__;
+extern int clock_getres(clockid_t, struct timespec*) __LIBC_ABI_PUBLIC__;
+extern int clock_gettime(clockid_t, struct timespec*) __LIBC_ABI_PUBLIC__;
+extern int clock_nanosleep(clockid_t, int, const struct timespec*, struct timespec*) __LIBC_ABI_PUBLIC__;
+extern int clock_settime(clockid_t, const struct timespec*) __LIBC_ABI_PUBLIC__;
 
 extern int timer_create(int, struct sigevent*, timer_t*) __LIBC_ABI_PUBLIC__;
 extern int timer_delete(timer_t) __LIBC_ABI_PUBLIC__;