V4L/DVB (6091): ivtv: header cleanup

- add guards
- remove unused header includes
- move card-specific stuff from ivtv-driver.h to ivtv-cards.h
- move YUV-specific stuff from ivtv-driver.h to ivtv-yuv.h

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/ivtv/ivtv-vbi.h b/drivers/media/video/ivtv/ivtv-vbi.h
index ec211b4..d574049 100644
--- a/drivers/media/video/ivtv/ivtv-vbi.h
+++ b/drivers/media/video/ivtv/ivtv-vbi.h
@@ -17,6 +17,9 @@
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#ifndef IVTV_VBI_H
+#define IVTV_VBI_H
+
 ssize_t ivtv_write_vbi(struct ivtv *itv, const char __user *ubuf, size_t count);
 void ivtv_process_vbi_data(struct ivtv *itv, struct ivtv_buffer *buf,
 			   u64 pts_stamp, int streamtype);
@@ -24,3 +27,5 @@
 void ivtv_disable_vbi(struct ivtv *itv);
 void ivtv_set_vbi(unsigned long arg);
 void ivtv_vbi_work_handler(struct ivtv *itv);
+
+#endif