V4L/DVB (9055): tuner-xc2028: Do a better job selecting firmware type

Firmware selection is very tricky on this device. This patch do a better
selection of the proper firmware type, by using a code to hint if the
firmware to be loaded should be D2620 or D2633.

It also allows overriding the hint at the control structure.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c
index 6c5475d..24bd183 100644
--- a/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/drivers/media/video/cx23885/cx23885-dvb.c
@@ -444,7 +444,8 @@
 				.fname   = XC3028L_DEFAULT_FIRMWARE,
 				.max_len = 64,
 				.demod   = 5000,
-				.d2633   = 1
+				/* This is true for all demods with v36 firmware? */
+				.type    = XC2028_D2633,
 			};
 
 			fe = dvb_attach(xc2028_attach,