ASoC: cs4271: fix boolean assignments

Reported by Coccinelle:
sound/soc/codecs/cs4271.c:226:2-16: WARNING: Assignment of bool to 0/1
sound/soc/codecs/cs4271.c:229:2-16: WARNING: Assignment of bool to 0/1

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/cs4271.c

@@ -223,10 +223,10 @@ static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
 
 	switch (format & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBS_CFS:
-		cs4271->master = 0;
+		cs4271->master = false;
 		break;
 	case SND_SOC_DAIFMT_CBM_CFM:
-		cs4271->master = 1;
+		cs4271->master = true;
 		val |= CS4271_MODE1_MASTER;
 		break;
 	default: