Set the expects flags to clock_nanosleep

It moves the missing CFLAGS from rt/Makefile to time/Makefile missing
from 7b5af2d8f2 (Finish move of clock_* functions to libc. [BZ #24959]).

Checked on powerpc64le-linux-gnu.

	* rt/Makefile (CFLAGS-clock_nanosleep.c): Move to ...
	* time/Makefile (CFLAGS-clock_nanosleep.c): ... here.

ChangeLog

@@ -1,5 +1,8 @@
 2019-09-25  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
+	* rt/Makefile (CFLAGS-clock_nanosleep.c): Move to ...
+	* time/Makefile (CFLAGS-clock_nanosleep.c): ... here.
+
 	* sysdeps/unix/sysv/linux/Makefile
 	(CFLAGS-tst-sigcontextinfo-get_pc.c): Rename to
 	CFLAGS-tst-sigcontext-get_pc.c.

rt/Makefile

@@ -56,7 +56,6 @@ include ../Rules
 CFLAGS-aio_suspend.c += -fexceptions
 CFLAGS-mq_timedreceive.c += -fexceptions -fasynchronous-unwind-tables
 CFLAGS-mq_timedsend.c += -fexceptions -fasynchronous-unwind-tables
-CFLAGS-clock_nanosleep.c += -fexceptions -fasynchronous-unwind-tables
 CFLAGS-librt-cancellation.c += -fasynchronous-unwind-tables
 
 LDFLAGS-rt.so = -Wl,--enable-new-dtags,-z,nodelete

time/Makefile

@@ -70,6 +70,7 @@ tz-cflags = -DTZDIR='"$(zonedir)"' \
 CFLAGS-tzfile.c += $(tz-cflags)
 CFLAGS-tzset.c += $(tz-cflags)
 CFLAGS-getdate.c += -fexceptions
+CFLAGS-clock_nanosleep.c += -fexceptions -fasynchronous-unwind-tables
 
 # Don't warn about Y2k problem in strftime format string.
 CFLAGS-test_time.c += -Wno-format