V4L/DVB (3347): Pinnacle PCTV 40i: add filtered Composite2 input

This patch adds another composite input to the Pinnacle PCTV 100i
definition which filters the chrominace signal from the luma input. This
improves video quality for Composite signals on the S-Video connector of
the card.
In addition the name string of the card is changed to include PCTV 40i
and 50i since these cards are identical.
Signed-off-by: Karsten Suehring <ksuehring@gmx.net>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

Documentation/video4linux/CARDLIST.saa7134

@@ -75,7 +75,7 @@
  74 -> LifeView FlyTV Platinum Mini2            [14c0:1212]
  75 -> AVerMedia AVerTVHD MCE A180              [1461:1044]
  76 -> SKNet MonsterTV Mobile                   [1131:4ee9]
- 77 -> Pinnacle PCTV 110i (saa7133)             [11bd:002e]
+ 77 -> Pinnacle PCTV 40i/50i/110i (saa7133)     [11bd:002e]
  78 -> ASUSTeK P7131 Dual                       [1043:4862]
  79 -> Sedna/MuchTV PC TV Cardbus TV/Radio (ITO25 Rev:2B)
  80 -> ASUS Digimatrix TV                       [1043:0210]

drivers/media/video/saa7134/saa7134-cards.c

@@ -2392,7 +2392,7 @@ struct saa7134_board saa7134_boards[] = {
 		}},
 	},
 	[SAA7134_BOARD_PINNACLE_PCTV_110i] = {
-		.name           = "Pinnacle PCTV 110i (saa7133)",
+	       .name           = "Pinnacle PCTV 40i/50i/110i (saa7133)",
 		.audio_clock    = 0x00187de7,
 		.tuner_type     = TUNER_PHILIPS_TDA8290,
 		.radio_type     = UNSET,
@@ -2407,6 +2407,10 @@ struct saa7134_board saa7134_boards[] = {
 		},{
 			  .name = name_comp1,
 			  .vmux = 1,
+			 .amux = LINE2,
+	       },{
+			 .name = name_comp2,
+			 .vmux = 0,
 			  .amux = LINE2,
 		},{
 			  .name = name_svideo,