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/include/pipeline_handler.h

@@ -63,11 +63,11 @@ public:
 	virtual int queueRequest(Camera *camera, Request *request) = 0;
 
 protected:
-	void registerCamera(std::shared_ptr<Camera> camera);
+	void registerCamera(std::shared_ptr<Camera> camera,
+			    std::unique_ptr<CameraData> data);
 	void hotplugMediaDevice(MediaDevice *media);
 
 	CameraData *cameraData(const Camera *camera);
-	void setCameraData(const Camera *camera, std::unique_ptr<CameraData> data);
 
 	CameraManager *manager_;