Detect potential misalignment in modern

src/fieldmap.c

@@ -25,7 +25,7 @@ struct ConnectionFlags
     u8 east:1;
 };
 
-EWRAM_DATA static u16 sBackupMapData[MAX_MAP_DATA_SIZE] = {0};
+EWRAM_DATA static u16 ALIGNED(4) sBackupMapData[MAX_MAP_DATA_SIZE] = {0};
 EWRAM_DATA struct MapHeader gMapHeader = {0};
 EWRAM_DATA struct Camera gCamera = {0};
 EWRAM_DATA static struct ConnectionFlags sMapConnectionFlags = {0};