A recent commit "[media] v4l2: make vidioc_s_crop const" introduced
warnings in pxa_camera.c. Fix them by adjusting a function declaration.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>