ALSA: hda: cs35l56: Don't 'return ret' if ret is always zero

The final return in cs35l56_hda_posture_get() was returning the
value of 'ret', but ret is always zero at this point. So this
can be a simple 'return 0'.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230914140852.7112-1-rf@opensource.cirrus.comSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/cs35l56_hda.c

@@ -218,7 +218,7 @@ static int cs35l56_hda_posture_get(struct snd_kcontrol *kcontrol,
 
 	ucontrol->value.integer.value[0] = pos;
 
-	return ret;
+	return 0;
 }
 
 static int cs35l56_hda_posture_put(struct snd_kcontrol *kcontrol,