[ALSA] hda-intel: support for iMac 24'' released on 09/2006

Basic audio support for the iMac 24'' model released on 09/2006,
including
headphone jack detection with automatic speaker muting.
This iMac uses the Realtek ALC885 codec, not a Sigmatel one as in
other models.
Functionality has been tested for internal speakers, headphone and
microphone.

Signed-off-by: Nicola Fagnani <nicfagn@iol.it>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 5bb45cd..241e26c 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -843,6 +843,7 @@
 	  6stack-dig	6-jack digital with SPDIF I/O
 	  arima		Arima W820Di1
 	  macpro	MacPro support
+	  imac24	iMac 24'' with jack detection
 	  w2jc		ASUS W2JC
 	  auto		auto-config reading BIOS (default)