- Move videodev headers from compat/linux to contrib/v4l (cp from vendor and

apply diff to compat/linux versions).
- The cp implies an update of videodev2.h to the linux kernel 2.6.34.14 one.

The update makes video in skype v4 work on FreeBSD.

Tested by:	Artyom Mirgorodskiy <artyom.mirgorodsky@gmail.com>
		(update of header only)

sys/compat/linux/linux_ioctl.c

@@ -85,10 +85,10 @@ __FBSDID("$FreeBSD$");
 #include <compat/linux/linux_socket.h>
 #include <compat/linux/linux_util.h>
 
-#include <compat/linux/linux_videodev.h>
+#include <contrib/v4l/videodev.h>
 #include <compat/linux/linux_videodev_compat.h>
 
-#include <compat/linux/linux_videodev2.h>
+#include <contrib/v4l/videodev2.h>
 #include <compat/linux/linux_videodev2_compat.h>
 
 CTASSERT(LINUX_IFNAMSIZ == IFNAMSIZ);