OoT: add ROM flag for death_link

worlds/oot/Patches.py

@@ -1325,6 +1325,9 @@ def patch_rom(world, rom):
     rom.write_byte(rom.sym('PLAYER_ID'), min(world.player, 255)) # Write player ID
     rom.write_bytes(rom.sym('AP_PLAYER_NAME'), bytearray(world.world.get_player_name(world.player), 'ascii'))
 
+    if world.death_link:
+        rom.write_byte(rom.sym('DEATH_LINK'), 0x01)
+
     # Revert Song Get Override Injection
     if not songs_as_items:
         # general get song

worlds/oot/data/generated/symbols.json

@@ -44,6 +44,7 @@
     "COSMETIC_CONTEXT": "03480844",
     "COSMETIC_FORMAT_VERSION": "03480844",
     "CURRENT_GROTTO_ID": "03482E82",
+    "DEATH_LINK": "0348002A",
     "DEBUG_OFFSET": "034828A0",
     "DISABLE_TIMERS": "03480CDC",
     "DPAD_TEXTURE": "0348D750",