Release resources for the notify file destriptor properly

Release resources for the notify file destriptor properly

If we close the fd only, io channel and watcher resource is
not released. So it occurs critical problems with next logs.

ecore<4672> ../src/lib/ecore/ecore_main.c:2083 _ecore_main_fd_handlers_bads_rem() Removing bad fds
ecore<4672> ../src/lib/ecore/ecore_main.c:2130 _ecore_main_fd_handlers_bads_rem() No bad fd found. Maybe a foreign fd from glib?

Change-Id: I683aa747018ff6139d31b48207b568da4dab8cae
Signed-off-by: DoHyun Pyun <dh79.pyun@samsung.com>