Update special save sector size checks

src/recorded_battle.c

@@ -67,7 +67,8 @@ struct RecordedBattleSave
     u32 checksum;
 };
 
-STATIC_ASSERT(sizeof(struct RecordedBattleSave) <= SECTOR_DATA_SIZE, RecordedBattleSaveFreeSpace);
+// Save data using TryWriteSpecialSaveSector is allowed to exceed SECTOR_DATA_SIZE (up to the counter field)
+STATIC_ASSERT(sizeof(struct RecordedBattleSave) <= SECTOR_COUNTER_OFFSET, RecordedBattleSaveFreeSpace);
 
 EWRAM_DATA u32 gRecordedBattleRngSeed = 0;
 EWRAM_DATA u32 gBattlePalaceMoveSelectionRngValue = 0;