[PATCH] [media] Fix build errors on usbtv when driver is builtin

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As reported by  Fengguang Wu <fengguang.wu@xxxxxxxxx>

   drivers/built-in.o: In function `vb2_ioctl_streamon':
>> (.text+0x8d354): undefined reference to `video_devdata'
   drivers/built-in.o: In function `vb2_ioctl_streamoff':
>> (.text+0x8d397): undefined reference to `video_devdata'
   drivers/built-in.o: In function `vb2_ioctl_expbuf':
...

That happens when:
	CONFIG_VIDEO_DEV=y
	CONFIG_VIDEO_V4L2=m
	CONFIG_VIDEO_USBTV=y

As the core is module, usbtv should also be compiled as module.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
---
 drivers/media/usb/usbtv/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/usbtv/Kconfig b/drivers/media/usb/usbtv/Kconfig
index 8864436..7c5b860 100644
--- a/drivers/media/usb/usbtv/Kconfig
+++ b/drivers/media/usb/usbtv/Kconfig
@@ -1,6 +1,6 @@
 config VIDEO_USBTV
         tristate "USBTV007 video capture support"
-        depends on VIDEO_DEV
+        depends on VIDEO_V4L2
         select VIDEOBUF2_VMALLOC
 
         ---help---
-- 
1.8.3.1

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