update camera params before recalculating max-zoom
update camera params before recalculating max-zoom

sledges/gst-droid,mlehtima/gst-droid,sledges/gst-droid,sledges/gst-droid,foolab/gst-droid,foolab/gst-droid,sailfishos/gst-droid,mlehtima/gst-droid