Get rid of common syms (#2040)

src/field_specials.c

@@ -92,7 +92,7 @@ static EWRAM_DATA u8 sFrontierExchangeCorner_ItemIconWindowId = 0;
 static EWRAM_DATA u8 sPCBoxToSendMon = 0;
 static EWRAM_DATA u32 sBattleTowerMultiBattleTypeFlags = 0;
 
-struct ListMenuTemplate gScrollableMultichoice_ListMenuTemplate;
+COMMON_DATA struct ListMenuTemplate gScrollableMultichoice_ListMenuTemplate = {0};
 
 void TryLoseFansFromPlayTime(void);
 void SetPlayerGotFirstFans(void);