Some header guard defines don't end in '_H'

[Sylvie]

berry_fix/payload/include/gba/defines.h:1:#ifndef GUARD_GBA_DEFINES
include/gba/defines.h:1:#ifndef GUARD_GBA_DEFINES
include/battle_gfx_sfx_util.h:1:#ifndef GUARD_BATTLE_GFX_SFX_UTIL
include/constants/metatile_behaviors.h:1:#ifndef GUARD_METATILE_BEHAVIORS
include/item_menu_icons.h:1:#ifndef GUARD_ITEM_MENU_ICONS
include/metatile_behavior.h:1:#ifndef GUARD_METATILE_BEHAVIOR
include/script_pokemon_util.h:1:#ifndef GUARD_SCRIPT_POKEMON_UTIL