ASoC: tscs454: remove useless test on PLL disable

cppcheck warning:

sound/soc/codecs/tscs454.c:730:37: style: Same value in both branches
of ternary operator. [duplicateValueTernary]
  val = pll1 ? FV_PLL1CLKEN_DISABLE : FV_PLL2CLKEN_DISABLE;
                                    ^
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210312182246.5153-24-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/tscs454.c

@@ -727,7 +727,12 @@ static int pll_power_event(struct snd_soc_dapm_widget *w,
 	if (enable)
 		val = pll1 ? FV_PLL1CLKEN_ENABLE : FV_PLL2CLKEN_ENABLE;
 	else
-		val = pll1 ? FV_PLL1CLKEN_DISABLE : FV_PLL2CLKEN_DISABLE;
+		/*
+		 * FV_PLL1CLKEN_DISABLE and FV_PLL2CLKEN_DISABLE are
+		 * identical zero vzalues, there is no need to test
+		 * the PLL index
+		 */
+		val = FV_PLL1CLKEN_DISABLE;
 
 	ret = snd_soc_component_update_bits(component, R_PLLCTL, msk, val);
 	if (ret < 0) {