nptl: fix exclusion of pthread_setconcurrency.c

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libpthread/nptl/Makefile.in

@@ -21,7 +21,7 @@ libpthread-routines- += allocatestack.c # dummy included by pthread_create.c
 libpthread-routines- += pthread_mutex_getprioceiling.c pthread_mutex_setprioceiling.c # XXX: delete those or use them!
 libpthread-routines-$(UCLIBC_HAS_RESOLVER_SUPPORT) += res.c
 libpthread-routines-$(UCLIBC_SUSV4_LEGACY) += pthread_getconcurrency.c \
-	pthread_setconcurrency
+	pthread_setconcurrency.c
 libpthread_CSRC = $(filter-out $(libpthread-routines-) \
 		  		$(libc-shared-routines-y) \
 		  		$(libc-static-routines-y) \