ALSA: hda - Add quirk for MacBook Pro 5,5 with CS4206

Add the default pin configs for MBP55.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Documentation/sound/alsa/HD-Audio-Models.txt

@@ -381,3 +381,7 @@ STAC9872
 ========
   vaio		VAIO laptop without SPDIF
   auto		BIOS setup (default)
+
+Cirrus Logic CS4206/4207
+========================
+  mbp55		MacBook Pro 5,5