ASoC: Intel: bytcr_rt5640: simplify MCLK quirk tests

remove redundant tests to check MCLK (align with other
machine drivers). some checks remain since when the MCLK is
disabled we fall back to using the bclk as PLL reference

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-By: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/bytcr_rt5640.c

@@ -178,7 +178,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w,
 	}
 
 	if (SND_SOC_DAPM_EVENT_ON(event)) {
-		if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
+		if (priv->mclk) {
 			ret = clk_prepare_enable(priv->mclk);
 			if (ret < 0) {
 				dev_err(card->dev,
@@ -199,7 +199,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w,
 					     48000 * 512,
 					     SND_SOC_CLOCK_IN);
 		if (!ret) {
-			if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk)
+			if (priv->mclk)
 				clk_disable_unprepare(priv->mclk);
 		}
 	}
@@ -549,7 +549,7 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
 	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 
-	if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
+	if (priv->mclk) {
 		/*
 		 * The firmware might enable the clock at
 		 * boot (this information may or may not