Docs: Unmark road NewGRF road stops as patch feature in landscape docs

docs/landscape.html

@@ -1062,7 +1062,7 @@
      <li style="color: blue">m8 bits 14..12: <a href="#RoadCachedOneWayState">Road cached one way state</a></li>
      <li>m8 bits 11..6: <a href="#TramType">Tramtype</a></li>
      <li>m8 bits 5..0: <a href="#TrackType">track type</a> for railway stations/waypoints</li>
-     <li style="color: blue">m8 bits 5..0: custom road stop id; 0 means standard graphics</li>
+     <li>m8 bits 5..0: custom road stop id; 0 means standard graphics</li>
     </ul>
    </td>
   </tr>

docs/landscape_grid.html

@@ -209,12 +209,12 @@ the array so you can quickly see what is used and what is not.
       <td class="bits" rowspan=2><span class="usable" title="Graphics index">OOOO O</span><span class="used" title="Graphics index: 00 (exit towards NE), 01 (exit towards SE), 02 (exit towards SW), 03 (exit towards NW), 04 (drive through X), 05 (drive through Y)">XXX</span></td>
       <td class="bits" rowspan=6><span class="free">O<span class="patch" title="Station type (extra bit)">P</span></span><span class="used" title="Station type">XXX</span> <span class="free">OOO</span></td>
       <td class="bits" rowspan=2><span class="free">OOO</span><span class="used" title="Owner of road">X XXXX</span></td>
-      <td class="bits"><span class="free">O</span><span class="patch" title="Road cached one way state">PPP</span> <span class="used" title="Tram type">XXXX XX</span><span class="patch" title="Custom road stops specifications ID">PP PPPP</span></td>
+      <td class="bits"><span class="free">O</span><span class="patch" title="Road cached one way state">PPP</span> <span class="used" title="Tram type">XXXX XX</span> <span class="used" title="Custom road stops specifications ID">XXXXXX</span></td>
     </tr>
     <tr>
       <td class="caption">road waypoint</td>
       <td class="bits"><span class="used" title="Owner of tram">XXXX</span> <span class="patch" title="Pavement type">PP</span> <span class="patch" title="Disallow vehicles to go a specific direction (drive-through road stop)">PP</span></td>
-      <td class="bits"><span class="patch" title="Snow/desert present">P</span> <span class="patch" title="Road cached one way state">PPP</span> <span class="used" title="Tram type">XXXX XX</span><span class="patch" title="Custom road stops specifications ID">PP PPPP</span></td>
+      <td class="bits"><span class="patch" title="Snow/desert present">P</span> <span class="patch" title="Road cached one way state">PPP</span> <span class="used" title="Tram type">XXXX XX</span> <span class="used" title="Custom road stops specifications ID">XXXXXX</span></td>
     </tr>
     <tr>
       <td class="caption">airport</td>