V4L/DVB (4520): Fix an error when loading bttv driver on PV M4900.

Previously, this were reported:
	Ooops: IR config error [card=139]

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/bt8xx/bttv-input.c b/drivers/media/video/bt8xx/bttv-input.c
index b41f81d..933d6db 100644
--- a/drivers/media/video/bt8xx/bttv-input.c
+++ b/drivers/media/video/bt8xx/bttv-input.c
@@ -303,6 +303,7 @@
 		ir->mask_keyup   = 0x010000;
 		ir->polling      = 50; // ms
 		break;
+	case BTTV_BOARD_PV_M4900:
 	case BTTV_BOARD_PV_BT878P_9B:
 	case BTTV_BOARD_PV_BT878P_PLUS:
 		ir_codes         = ir_codes_pixelview;