Codefix: Move saveload of road stop tile data (#12883)

So that road stop tile data is also saved/loaded for road waypoints

src/saveload/saveload.h

@@ -385,6 +385,8 @@ enum SaveLoadVersion : uint16_t {
 	SLV_ROAD_WAYPOINTS,                     ///< 338  PR#12572 Road waypoints
 	SLV_COMPANY_INAUGURATED_PERIOD,         ///< 339  PR#12798 Companies show the period inaugurated in wallclock mode.
 
+	SLV_ROAD_STOP_TILE_DATA,                ///< 340  PR#12883 Move storage of road stop tile data, also save for road waypoints.
+
 	SL_MAX_VERSION,                         ///< Highest possible saveload version
 };
 

src/saveload/station_sl.cpp

@@ -622,7 +622,7 @@ public:
 		SLE_REFLIST(Station, loading_vehicles,           REF_VEHICLE),
 		SLE_CONDVAR(Station, always_accepted,            SLE_FILE_U32 | SLE_VAR_U64, SLV_127, SLV_EXTEND_CARGOTYPES),
 		SLE_CONDVAR(Station, always_accepted,            SLE_UINT64,                 SLV_EXTEND_CARGOTYPES, SL_MAX_VERSION),
-		SLEG_CONDSTRUCTLIST("speclist", SlRoadStopTileData,                          SLV_NEWGRF_ROAD_STOPS, SL_MAX_VERSION),
+		SLEG_CONDSTRUCTLIST("speclist", SlRoadStopTileData,                          SLV_NEWGRF_ROAD_STOPS, SLV_ROAD_STOP_TILE_DATA),
 		SLEG_STRUCTLIST("goods", SlStationGoods),
 	};
 	inline const static SaveLoadCompatTable compat_description = _station_normal_sl_compat;
@@ -687,6 +687,7 @@ static const SaveLoad _station_desc[] = {
 	SLEG_STRUCT("waypoint", SlStationWaypoint),
 	SLEG_CONDSTRUCTLIST("speclist", SlStationSpecList<StationSpec>, SLV_27, SL_MAX_VERSION),
 	SLEG_CONDSTRUCTLIST("roadstopspeclist", SlStationSpecList<RoadStopSpec>, SLV_NEWGRF_ROAD_STOPS, SL_MAX_VERSION),
+	SLEG_CONDSTRUCTLIST("roadstoptiledata", SlRoadStopTileData, SLV_ROAD_STOP_TILE_DATA, SL_MAX_VERSION),
 };
 
 struct STNNChunkHandler : ChunkHandler {