[media] s5p-tv: don't include linux/version.h in mixer_video.c

The header is not needed, so remove it.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>