V4L/DVB (8641): arv: fix compilation errors/warnings

- add PCI dependency for btcx
- fix compile errors (doesn't like ';' at the end of a #if 0)

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/Kconfig

@@ -34,6 +34,7 @@ config VIDEOBUF_DVB
 	select VIDEOBUF_GEN
 
 config VIDEO_BTCX
+	depends on PCI
 	tristate
 
 config VIDEO_IR