Update subtype fro Earth Station's flip side.

v2/cards/earth_station_sea_headquarters.json

@@ -6,6 +6,7 @@
     {
       "stripped_text": "Limit 1 remote server. As an additional cost to run a remote server, the Runner must pay 6 credits. When the Runner makes a successful run on HQ, flip this identity.",
       "stripped_title": "Earth Station: Ascending to Orbit",
+      "subtypes": ["division"],
       "text": "Limit 1 remote server.\nAs an additional cost to run a remote server, the Runner must pay 6[credit].\nWhen the Runner makes a successful run on HQ, flip this identity.",
       "title": "Earth Station: Ascending to Orbit"
     }