V4L/DVB (9632): make em28xx aux audio input work

The attached patch makes the em28xx auxillary audio input work.
Tested with the HVR-950.

em28xx: make auxillary audio input work

The tuner audio input was working but the aux input wasn't.  Tested with
the HVR-950.
Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/em28xx/em28xx-core.c

@@ -270,6 +270,8 @@ static int em28xx_set_audio_source(struct em28xx *dev)
 			break;
 		case EM28XX_AMUX_LINE_IN:
 			input = EM28XX_AUDIO_SRC_LINE;
+			video = disable;
+			line  = enable;
 			break;
 		case EM28XX_AMUX_AC97_VIDEO:
 			input = EM28XX_AUDIO_SRC_LINE;