Export the mq_getfd_np() symbol from librt.so, which allows to get

file descriptor for the given posix mqueue.  Export the
timer_oshandle_np() symbol to get ktimer id for the given posix timer.

Requested by:	Lewis Donzis <lew@perftech.com>
Reviewed by:	jilles
Discussed with:	kan
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week

include/mqueue.h

@@ -50,7 +50,9 @@ ssize_t	mq_timedreceive(mqd_t, char *__restrict, size_t,
 int	mq_timedsend(mqd_t, const char *, size_t, unsigned,
 		const struct timespec *);
 int	mq_unlink(const char *);
-int	__mq_oshandle(mqd_t mqd);
+#if __BSD_VISIBLE
+int	mq_getfd_np(mqd_t mqd);
+#endif /* __BSD_VISIBLE */
 
 __END_DECLS
 #endif

include/time.h

@@ -194,6 +194,7 @@ char *timezone(int, int);	/* XXX XSI conflict */
 void tzsetwall(void);
 time_t timelocal(struct tm * const);
 time_t timegm(struct tm * const);
+int timer_oshandle_np(timer_t timerid);
 #endif /* __BSD_VISIBLE */
 
 #if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)