libcamera: pipeline_handler: Make pipeline-specific data mandatory

Mandate creationg of pipeline-specific data by pipeline handlers. This
allows simplifying the API by passing the pipeline-specific data to the
registerCamera() method and removing the separate setCameraData()
method.

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

src/libcamera/pipeline/vimc.cpp

@@ -202,9 +202,7 @@ bool PipelineHandlerVimc::match(DeviceEnumerator *enumerator)
 	std::set<Stream *> streams{ &data->stream_ };
 	std::shared_ptr<Camera> camera = Camera::create(this, "VIMC Sensor B",
 							streams);
-
-	setCameraData(camera.get(), std::move(data));
-	registerCamera(std::move(camera));
+	registerCamera(std::move(camera), std::move(data));
 
 	return true;
 }