e_comp_object: fix the comp object is shown even if ec is iconic

e_comp_object: fix the comp object is shown even if ec is iconic

There is a bug that the comp object is shown when
client is set by iconic during showing animation.

1. client A is showing and begin animating of comp object
2. cw->animating is increased
3. e_client_iconify and _e_comp_intercept_hide is called
4. defer_hide is set
5. _e_comp_object_done_defer is called with "e,action,show,done"
6. the comp object is never hidden

for fixing this bug, call evas_object_hide when
_e_comp_object_done_defer is called with "e,action,show,done"
and defer_hide is set.

Change-Id: I7fdee04e208288ef06b4aaacb445a41ffd6e4d79