* Fixed two issues with Nightmare Ancient Mummy.
- Corrected a drop. (bugreport:8277)
http://rathena.org/board/tracker/issue-8277-nightmare-pyramids-ancient-mummy/
- Fixed a quest target. (bugreport:8278)
http://rathena.org/board/tracker/issue-8278-nightmare-pyramids-ancient-mummy-kill-quest/

Signed-off-by: Euphy <euphy.raliel@rathena.org>