V4L/DVB (11206): pvrusb2: Add sub-device for demod

Forgot to include the tda9887 component when moving to v4l2-subdev.  I
got fooled because its name is "tuner", the same as the tuner module.
Silly me.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
index ed9cded..13a59c4 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h
@@ -40,6 +40,7 @@
 #define PVR2_CLIENT_ID_TUNER 4
 #define PVR2_CLIENT_ID_CS53L32A 5
 #define PVR2_CLIENT_ID_WM8775 6
+#define PVR2_CLIENT_ID_DEMOD 7
 
 struct pvr2_device_client_desc {
 	/* One ovr PVR2_CLIENT_ID_xxxx */