Fix surroundX PCM

From: Julian Scheel <julian@jusst.de>

Hi all,

attached is an updated ICE1724.conf - I have added channels X parameters to
the .pcm.surroundXX-fields, because otherwise it's for example not possible
to play a 5.1-stream on surround51 and a stereo-stream on side simultaneous.
I need this feature to do multiroom-sound through one single sound-card (one
room playing a DVD with 5.1, another room playing some MP3s through channels
7 and 8).
I hope you could follow my explanations and will add this to the tree.

Cheers,
Julian

src/conf/cards/ICE1724.conf

@@ -23,7 +23,7 @@ ICE1724.pcm.rear.0 {
 	type hw
 	card $CARD
 	device 2
-	subdevice 1
+	subdevice 0
 }	
 
 <confdir:pcm/center_lfe.conf>
@@ -36,7 +36,7 @@ ICE1724.pcm.center_lfe.0 {
 	type hw
 	card $CARD
 	device 2
-	subdevice 0
+	subdevice 1
 }	
 
 <confdir:pcm/side.conf>
@@ -64,11 +64,14 @@ ICE1724.pcm.surround40.0 {
 	ttable.1.1 1
 	ttable.2.4 1
 	ttable.3.5 1
-	slave.pcm {
+	slave {
+		channels 4
+		pcm {
 			type hw
 			card $CARD
 		}
 	}
+}	
 
 <confdir:pcm/surround41.conf>
 <confdir:pcm/surround50.conf>
@@ -86,11 +89,14 @@ ICE1724.pcm.surround51.0 {
 	ttable.3.5 1
 	ttable.4.2 1
 	ttable.5.3 1
-	slave.pcm {
+	slave {
+		channels 6
+                pcm {
 			type hw
 	 		card $CARD
 		}
 	}
+}
 
 <confdir:pcm/surround71.conf>
 
@@ -108,11 +114,14 @@ ICE1724.pcm.surround71.0 {
 	ttable.5.3 1
 	ttable.6.6 1
 	ttable.7.7 1
-	slave.pcm {
+	slave {
+		channels 8
+		pcm {
 			type hw
 			card $CARD
 		}
 	}
+}
 
 <confdir:pcm/iec958.conf>