mm-video: vdec: Correct video driver's crop parameters handling

Remove updating video resolution when crop parameters are changed
Update video resolution only when "port settings changed sufficient"
event is received from the driver. Make sure the video resolution
is updated after all the pending fbds are rendered with the old
resolution by queuing the event in ftb queue instead of cmd queue.

Change-Id: I22ddc9961a271eea379a08534c769f2842142d8f
mm_video: vidc: Update buffer geometry with stride and scanline

Update buffer geometry dimensions using stride and snanline.
Earlier it was updated conditionally to handle downscalar case.
Now component is fetching all updated dimensions in case of
crop event, so stride and scanline can be used for the same.

Change-Id: If44a6df8498bff2ce39c9428b3708adbee7b8542