libstagefright : Update decode width and height with stride and slice height

-Update decode width and height with stride and slice height from the OMX component.
-In case of clips with dimensions that are not multiples of 16, OMX component
 issues a port reconfiguration to notify change in stride and slice height.
-If this is not updated in stagefright, renderer gets created with wrong
 parameters resulting in a green line on top of video.

Change-Id: I426ac593516937fb994144dfa52d7d7a962d3a9b
CRs-Fixed:246638