potential GraphRunner leak in camera effects

if the camera FCs while recording effects.. *poof* a tiny leak is born.
so.. we close mRunner onDestroy.

Change-Id: I6a7983f120a03137f545a3cd9bb07ff51a9cd2d7
activity manager tweak-a-roonie

Change-Id: Ic511257e8154610288019c52fb41cc6bf551ebd3