Fix build failure on mac due to invalid access on private member from rw_lock

Author: robertbindar

storage/innobase/include/srw_lock.h

@@ -138,6 +138,7 @@ class ssux_lock_impl final
   /** @return whether any writer is waiting */
   bool is_waiting() const { return (value() & WRITER_WAITING) != 0; }
   bool is_write_locked() const { return rw_lock::is_write_locked(); }
+  bool is_locked_or_waiting() const { return rw_lock::is_locked_or_waiting(); }
 
   bool rd_lock_try() { uint32_t l; return read_trylock(l); }
   bool wr_lock_try() { return write_trylock(); }