android: CameraDevice: Add stop()

This adds CameraDevice::stop(), which cleans up the member
variables of CameraDevice. It is called in CameraDevice::close()
and CameraDevice::configureStreams().

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/android/camera_device.h

@@ -85,6 +85,8 @@ private:
 		int androidFormat;
 	};
 
+	void stop();
+
 	int initializeStreamConfigurations();
 	std::vector<libcamera::Size>
 	getYUVResolutions(libcamera::CameraConfiguration *cameraConfig,