Corrected configuration for CMI8338/8738.

- CMI8738 is aliased to CMI8338.
- New config file for multi channel cards with -MCx suffix

src/conf/cards/CMI8338.conf

@@ -1,7 +1,9 @@
 #
-# Configuration for the CMI8338 chip
+# Configuration for the CMI8338/8738 chip (w/o multi-channel support)
 #
 
+<confdir:pcm/front.conf>
+
 CMI8338.pcm.front.0 {
 	@args [ CARD ]
 	@args.CARD {
@@ -12,6 +14,8 @@ CMI8338.pcm.front.0 {
 	device 0
 }	
 
+<confdir:pcm/rear.conf>
+
 # 2nd DAC
 # FIXME: we need a volume attenuator for rear channel.
 CMI8338.pcm.rear.0 {
@@ -24,6 +28,8 @@ CMI8338.pcm.rear.0 {
 	device 1
 }
 
+<confdir:pcm/surround40.conf>
+
 # for the old CM8738 with 2nd DAC for rear
 CMI8338.pcm.surround40.0 {
 	@args [ CARD ]
@@ -60,6 +66,7 @@ CMI8338.pcm.surround40.0 {
 	]
 }
 
+<confdir:pcm/iec958.conf>
 
 CMI8338.pcm.iec958.0 {
 	@args [ CARD DEV AES0 AES1 AES2 AES3 ]
@@ -82,18 +89,18 @@ CMI8338.pcm.iec958.0 {
 		type integer
 	}
 	type hooks
+	slave.pcm {
+		type hw
+		card $CARD
+		device 2
+	}
 	hooks.0 {
 		type ctl_elems
 		hook_args [
-			{
-				name "IEC958 Enable"
-				value 1
-				lock true
-				preserve true
-			}
 			{
 				interface PCM
 				name "IEC958 Playback PCM Stream"
+				device 2
 				lock true
 				preserve true
 				value [ $AES0 $AES1 $AES2 $AES3 ]