V4L/DVB (10907): avoid loading the entire videodev.h header on V4L2 drivers

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c
index 6a79555..583f9c1 100644
--- a/drivers/media/video/v4l2-ioctl.c
+++ b/drivers/media/video/v4l2-ioctl.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 
 #define __OLD_VIDIOC_ /* To allow fixing old calls */
+#include <linux/videodev.h>
 #include <linux/videodev2.h>
 
 #ifdef CONFIG_VIDEO_V4L1