fix display artifacts in preview screen in timelapse video mode

We were not updating the h/w composer state when the buffer size
changed.

We also didn't update the h/w composer state when the transformation
matrix changed (which is related to the above issue, since it would
probably change when the buffer size changes).

Also moved updating the crop to setGeometry(), since we decided
that the "crop" change requires the GEOMETRY_CHANGED flag (ie:
not need to do this every frame)

Bug: 5238473

Change-Id: Ia7b47e145b48581b568d89d9aa2c14ff778be862