Tweak some overmap landable areas

Fixes #7609

maps/tether/submaps/gateway/carpfarm.dm

@@ -1,5 +1,5 @@
 /obj/effect/overmap/visitable/sector/tether_gateway/carpfarm
-	initial_generic_waypoints = list("tether_excursion_carpfarm")
+	initial_generic_waypoints = list("carpfarm1", "carpfarm2")
 	scanner_name = "Carp-Infested Outpost"
 	scanner_desc = @{"[i]Registration[/i]: UNKNOWN
 [i]Class[/i]: Installation

maps/tether/submaps/gateway/snow_outpost.dmm

@@ -340,7 +340,7 @@
 /turf/simulated/floor/tiled/white,
 /area/awaymission/snow_outpost/powered)
 "bl" = (
-/obj/machinery/power/smes/magical,
+/obj/machinery/power/smes/buildable/point_of_interest,
 /turf/simulated/floor/tiled/white,
 /area/awaymission/snow_outpost/powered)
 "bm" = (