Added snd_config_hook_load_for_all_cards.

Added private_data parameter for snd_config_hooks function.
Fixed the return value mess in the config parser routines.
The include file could begin with 'confdir:' which is replaced with /usr/share/alsa.
The snd_config_search_definitions looks for raw name at first (without suggested root).
Added snd_func_private_card_strtype function.
All configuration files moved to the src/conf directory.
Configuration files modified to use load-on-demand feature using hooks.

src/conf/cards/ICE1712.conf

@@ -0,0 +1,100 @@
+#
+# Configuration for the ICE1712 (Envy24) chip
+#
+
+<confdir:pcm/front.conf>
+
+ICE1712.pcm.front.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type route
+	ttable.0.0 1
+	ttable.1.1 1
+	slave.pcm {
+		type hw
+		card $CARD
+	}
+}	
+
+<confdir:pcm/surround40.conf>
+
+ICE1712.pcm.surround40.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type route
+	ttable.0.0 1
+	ttable.1.1 1
+	ttable.2.2 1
+	ttable.3.3 1
+	slave.pcm {
+		type hw
+		card $CARD
+	}
+}	
+
+<confdir:pcm/surround51.conf>
+
+ICE1712.pcm.surround51.0 {
+	@args [ CARD ]
+	@args.CARD {
+		type string
+	}
+	type route
+	ttable.0.0 1
+	ttable.1.1 1
+	ttable.2.2 1
+	ttable.3.3 1
+	ttable.4.4 1
+	ttable.5.5 1
+	slave.pcm {
+		type hw
+		card $CARD
+	}
+}
+
+<confdir:pcm/iec958.conf>
+
+ICE1712.pcm.iec958.0 {
+	@args [ CARD DEV AES0 AES1 AES2 AES3 ]
+	@args.CARD {
+		type string
+	}
+	@args.DEV {
+		type integer
+	}
+	@args.AES0 {
+		type integer
+	}
+	@args.AES1 {
+		type integer
+	}
+	@args.AES2 {
+		type integer
+	}
+	@args.AES3 {
+		type integer
+	}
+	type hooks
+	slave.pcm {
+		type plug
+		ttable.0.8 1
+		ttable.1.9 1
+		card $CARD
+	}
+	hooks.0 {
+		type ctl_elems
+		hook_args [
+			{
+				interface PCM
+				name "IEC958 Playback PCM Stream"
+				lock true
+				preserve true
+				value [ $AES0 $AES1 $AES2 $AES3 ]
+			}
+		]
+	}
+}