[ALSA] hda - Fix resume of auto-config mode with Realtek codecs

The auto-config mode of Realtek ALC codecs has a bug since 2.6.25
that it cannot resume properly.  The problem was the wrong assignment
of init_hook that overrides the whole initialization.

Relevant bug reports:
	http://bugzilla.kernel.org/show_bug.cgi?id=10662
	https://bugzilla.novell.com/show_bug.cgi?id=385473

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

sound/pci/hda/patch_realtek.c

@@ -942,7 +942,6 @@ do_sku:
 			    AC_VERB_SET_UNSOLICITED_ENABLE,
 			    AC_USRSP_EN | ALC880_HP_EVENT);
 	spec->unsol_event = alc_sku_unsol_event;
-	spec->init_hook = alc_sku_automute;	
 }
 
 /*