[ALSA] hda-codec - Add support for Fujitsu PI1556 Realtek ALC880

This patch adds support for the Fujitsu PI1556 laptop.
Issue:  Volume knob on system maxes out lower than alsamixer (0x35 vs 0x40).
Everything else works, and audio quality is good at 0x35.

Signed-off-by: Tobin Davis <tdavis@dsl-only.net>
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 4f82145..c30ff1b 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -785,6 +785,7 @@
 	  asus-dig	ASUS with SPDIF out
 	  asus-dig2	ASUS with SPDIF out (using GPIO2)
 	  uniwill	3-jack
+	  fujitsu	Fujitsu Laptops (Pi1536)
 	  F1734		2-jack
 	  lg		LG laptop (m1 express dual)
 	  lg-lw		LG LW20/LW25 laptop