[ALSA] hda-codec - Fix definition of AC_KNBCAP_DELTA to match spec

AC_KNBCAP_DELTA is incorrectly defined as (1<<8). According to the Intel
HDA spec, this is bit 7 after AC_KNBCAP_NUM_STEPS which is a 0x7f mask.
Signed-off-by: NAndrew Paprocki <andrew@ishiboo.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

sound/pci/hda/hda_codec.h

@@ -234,7 +234,7 @@ enum {
 
 /* Volume knobs capabilities */
 #define AC_KNBCAP_NUM_STEPS		(0x7f<<0)
-#define AC_KNBCAP_DELTA			(1<<8)
+#define AC_KNBCAP_DELTA			(1<<7)
 
 /*
  * Control Parameters