parse: properly update crop framesize
parse: properly update crop framesize

Reported by Bas van den Berg.

Signed-off-by: Felipe Contreras <de77a8b9cd239b204c19c52ed62e48ab47243362@nokia.com>

felipec/gst-dsp,community-ssu/gst-dsp,community-ssu/gst-dsp,community-ssu/gst-dsp,felipec/gst-dsp