Fix configuration for Aureon and Prodigy71 boards

Fixed the default configuration of Aureon and Prodigy71 boards
to use dmix/dsnoop.  Added a new alias for Prodigy71LT.

src/conf/cards/Aureon51.conf

@@ -2,6 +2,29 @@
 # Configuration for the Aureon51 (Envy24HT) chip
 #
 
+# default with dmix & dsnoop
+Aureon51.pcm.default {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type asym
+	playback.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dmix:" $CARD ",FORMAT=S32_LE" ]
+		}
+	}
+	capture.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dsnoop:" $CARD ",FORMAT=S32_LE" ]
+		}
+	}
+}
+
 <confdir:pcm/front.conf>
 
 Aureon51.pcm.front.0 {

src/conf/cards/Aureon71.conf

@@ -2,6 +2,29 @@
 # Configuration for the Aureon71 (Envy24HT) chip
 #
 
+# default with dmix & dsnoop
+Aureon71.pcm.default {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type asym
+	playback.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dmix:" $CARD ",FORMAT=S32_LE" ]
+		}
+	}
+	capture.pcm {
+		type plug
+		slave.pcm {
+			@func concat
+			strings [ "dsnoop:" $CARD ",FORMAT=S32_LE" ]
+		}
+	}
+}
+
 <confdir:pcm/front.conf>
 
 Aureon71.pcm.front.0 {

src/conf/cards/aliases.conf

@@ -22,6 +22,7 @@ au8810 cards.AU8810
 au8820 cards.AU8820
 au8830 cards.AU8830
 Prodigy71 cards.Aureon71
+Prodigy71LT cards.Aureon71
 Aureon71Universe cards.Aureon71
 VIA82XX-MODEM cards.ICH-MODEM
 'MPU-401 UART' cards.MPU-401