preload: Don't intercept netlink socket() calls during recording

Otherwise socket() will create an AF_UNIX and the following bind() (which uses
the real bind if there is no $UMOCKDEV_DIR) fails with "invalid argument".
Update devices/cameras/canon-powershot-sx200.ioctl for libgphoto 2.5

Adjust /umockdev-run/integration/gphoto-filelist accordingly, as we had
different demo files on the camera during recording.
Check for gphoto >= 2.5 in gphoto integration test cases