Wayland: keyboard repeat rate is given in Hz

It was currently interpreted as ms, which is obviously wrong.

Thanks to https://github.com/Smithay/client-toolkit/pull/62 for making
me notice this issue.

src/wl_init.c

@@ -589,8 +589,10 @@ static void keyboardHandleKey(void* data,
         {
             _glfw.wl.keyboardLastKey = keyCode;
             _glfw.wl.keyboardLastScancode = key;
-            timer.it_interval.tv_sec = _glfw.wl.keyboardRepeatRate / 1000;
-            timer.it_interval.tv_nsec = (_glfw.wl.keyboardRepeatRate % 1000) * 1000000;
+            if (_glfw.wl.keyboardRepeatRate > 1)
+                timer.it_interval.tv_nsec = 1000000000 / _glfw.wl.keyboardRepeatRate;
+            else
+                timer.it_interval.tv_sec = 1;
             timer.it_value.tv_sec = _glfw.wl.keyboardRepeatDelay / 1000;
             timer.it_value.tv_nsec = (_glfw.wl.keyboardRepeatDelay % 1000) * 1000000;
         }