fix brackets, conversion warnings in battle_load_elements.c

g3headers

-Subproject commit d31c1af54121a32dc22fd8101492383b844a9dbe
+Subproject commit bcc741a7ec06fc8a1b7c0e0b93a7f94f318a658e

patches/hooks.asm

 //.org 0x0800f268
 //    .halfword 0xE000
 
-.org 0x0800FD5C
-    .word battle_bg_table
-
-.org 0x0800FD88
-    .word battle_bg_table
-//end of battle bg table
-
 //flag routine
 .org 0x0806E5D6
 	ldr r0, =flag_hook|1

src/battle_engine/battle_load_elements/battle_load_elements.c

     (void)idx;
 
     struct BattleScreenElements element = BATTLE_ELEMENT(var_load(BATTLE_ELEMENT_VAR));
-    if (element.gfx_grass == NULL | element.map_grass == NULL)
+    if ((element.gfx_grass == NULL) | (element.map_grass == NULL))
         return;
     lz77UnCompVram(element.gfx_grass, (void *)0x06004000);
     lz77UnCompVram(element.map_grass, (void *)0x0600E000);