v4l2: transform: Adding support for scaler
v4l2: transform: Adding support for scaler

- Add code to gst_v4l2_transform_fixate_caps for supporting image resize
- Change the order of the calls to set driver capture and output format (in order to deal with IPU IC capture size restriction of 1024)

Signed-off-by: Pablo Anton <5ba87db0255dba28a3a094ad071ca6f87047f505@vodalys-labs.com>

veo-labs/gst-plugins-good,veo-labs/gst-plugins-good,veo-labs/gst-plugins-good,veo-labs/gst-plugins-good