libcamera: v4l2_controls: Remove V4L2ControlList class

The V4L2ControlList class only provides a convenience constructor for
the ControlList, which can easily be moved to the ControlList class and
may benefit it later (to construct a ControlList from controls supported
by a camera). Move the constructor and remove V4L2ControlList.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

src/libcamera/pipeline/vimc.cpp

@@ -279,7 +279,7 @@ void PipelineHandlerVimc::stop(Camera *camera)
 
 int PipelineHandlerVimc::processControls(VimcCameraData *data, Request *request)
 {
-	V4L2ControlList controls(data->sensor_->controls());
+	ControlList controls(data->sensor_->controls());
 
 	for (auto it : request->controls()) {
 		const ControlId &id = *it.first;