MDEV-26769 fixup: Fix the SUX_LOCK_GENERIC build

storage/innobase/include/buf0types.h

@@ -191,10 +191,8 @@ class page_hash_latch : private rw_lock
   /** Acquire an exclusive lock */
   inline void lock();
 
-#ifdef UNIV_DEBUG
   /** @return whether an exclusive lock is being held by any thread */
   bool is_write_locked() const { return rw_lock::is_write_locked(); }
-#endif
 
   /** @return whether any lock is being held by any thread */
   bool is_locked() const { return rw_lock::is_locked(); }

storage/innobase/include/srw_lock.h

@@ -137,6 +137,7 @@ class ssux_lock_impl final
   void destroy();
   /** @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 rd_lock_try() { uint32_t l; return read_trylock(l); }
   bool wr_lock_try() { return write_trylock(); }