Currently modular V4L2 build with enabled OF is broken dur to the
of_get_next_parent() function being unavailable to modules. Export it to
fix the build.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: NGrant Likely <grant.likely@linaro.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>