edje_callbacks: fix click signal emitting even though mouse event was cancelled

edje_callbacks: fix click signal emitting even though mouse event was cancelled

    even though each part want to get the signal regardless of ON_HOLD,
    click signal should not emmitted if event flag is set to ON_HOLD.
    ON_HOLD means this event is useless, so up event with ON_HOLD flag cannot source of clicked signal.

    @fix

    open_commit 27495fe6705a5e28971cffdd8e9cfcb92868a439
    Author: Ji-Youn Park <jy0703.park@samsung.com>
    Date:   Wed May 11 22:14:27 2016 +0830

Change-Id: I953268970ef1bcf74725a5e938ee37eed19d953d