V4L/DVB (7949): videodev: renamed the vidioc_*_fmt_* callbacks

The naming for the callbacks that handle the VIDIOC_ENUM_FMT and
VIDIOC_S/G/TRY_FMT ioctls was very confusing. Renamed it to match
the v4l2_buf_type name.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h
index 27da7b4..955e6bc 100644
--- a/drivers/media/video/bt8xx/bttvp.h
+++ b/drivers/media/video/bt8xx/bttvp.h
@@ -254,9 +254,9 @@
 /* ---------------------------------------------------------- */
 /* bttv-vbi.c                                                 */
 
-int bttv_try_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
-int bttv_g_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
-int bttv_s_fmt_vbi(struct file *file, void *fh, struct v4l2_format *f);
+int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
+int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
+int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
 
 extern struct videobuf_queue_ops bttv_vbi_qops;