[media] av7110: fix v4l2_compliance test issues

Besides the usual inconsistencies in input enumeration there was also a
kernel crash if you tried to poll on a vbi node. The checks for sliced
vbi output vs vbi capture were not complete enough.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/common/saa7146_video.c b/drivers/media/common/saa7146_video.c
index 9d19320..6d14785 100644
--- a/drivers/media/common/saa7146_video.c
+++ b/drivers/media/common/saa7146_video.c
@@ -458,13 +458,13 @@
 		V4L2_CAP_READWRITE |
 		V4L2_CAP_STREAMING;
 	cap->device_caps |= dev->ext_vv_data->capabilities;
+	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
 	if (vdev->vfl_type == VFL_TYPE_GRABBER)
 		cap->device_caps &=
 			~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT);
 	else
 		cap->device_caps &=
-			~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY);
-	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+			~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_AUDIO);
 	return 0;
 }