ALSA: azt3328: More constification

Apply const prefix to the static initial register table.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-61-tiwai@suse.deSigned-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/azt3328.c

@@ -1152,7 +1152,7 @@ static const struct snd_kcontrol_new snd_azf3328_mixer_controls[] = {
 #endif
 };
 
-static u16 snd_azf3328_init_values[][2] = {
+static const u16 snd_azf3328_init_values[][2] = {
         { IDX_MIXER_PLAY_MASTER,	MIXER_MUTE_MASK|0x1f1f },
         { IDX_MIXER_MODEMOUT,		MIXER_MUTE_MASK|0x1f1f },
 	{ IDX_MIXER_BASSTREBLE,		0x0000 },